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Erasing SD Card contents and personal data
I have an SD card in my Droid Global or Droid X, not exactly sure which model. I go to the files and click on the SD card instead of shred files and delete all of its contents. I then go to Privacy and click the Manufacturer Reset and also click the box to erase SD Card. My phone does a hard reset, and it turns back on.
After this process, what is readable on my SD card if someone took it and hooked up to a computer or anything else?  If I hadn't done the reset, would someone be able to see text messages, phone calls, or browsing history if I've deleted them all from my phone?

The other answers are a little misleading.
First, it doesn't really matter from a security standpoint whether you've got things stored on the SD card or on the internal storage.  The SD card is easier to remove and read outside the phone, but the internal storage can be read as well (most easily from the device itself but also from a PC).
The second thing is that I would expect this wipe to be insecure, i.e., file deletion rather than zeroing of the storage.  (I haven't checked myself.)  I recommend using a program like Eraser to zero your SD card.  I don't have a good recommendation for the device storage, unfortunately.

So if I know how to flash ROMs, can I safely connect device to computer and format both its internal and external SDs?  Edit: just found it. You rock!

Is this indeed the answer? If I format both SDs will I be able to go into download mode and flash ROMs with Odin?

@Shimmy Thanks :).  You don't need to format anything to get into Download Mode and use Odin.

What happens if I do? Device bricked? Is that a possibility?

@Shimmy If you format your bootloader then you can brick the device, but otherwise -- as long as Download Mode & Odin are working normally -- you cannot brick it.  Formatting the storage partitions won't affect your bootloader.

So explain me how it works, I have a Galaxy Player that's got an external SD, are there actually 3 disks? two SD and another hidden one? Can I delete the bootloader if I format the two SDs visible as mass storage when connected to my PC?

@Shimmy All internal storage should be one contiguous bit of flash memory, partitioned up into the main Android system storage, your "internal SD card" (badly named), and things like recovery and bootloader.  So counting your external SD it's only two storage devices.  Only the internal SD data partition of the main storage will be made available to your PC operating system, so wiping it from there should work very well without harming your bootloader in any way.

Well said Matthew.

When you do a hard reset, or a Factory Default Reset, it wipes your Phones INTERNAL storage completely. So anything that was saved on your phones internal storage, is pretty much gone.
Personal things such as : Texts, Phone Calls, and Browsing History, are not stored on your SD Card, but stored Internally. So doing that wipe will have cleared it out.
So you're fine. Your SD Card never really holds anything personal like that.

So if I know how to flash ROMs, can I safely connect device to computer and format both its internal and external SDs?

Oops, just found it. You rock!

Before deleting anything you should encrypt your sdcard and your internal storage (this appears to be built into android but located in different places on different devices, or maybe it's different versions). Do this first because depending on how the encryption works there may be gaps left unencrypted because it didn't think it needed to overwrite deleted space. you could try to fill that space before erasing for total security.
Once encryption is done, you can then erase your sdcard (again, should be built in, though Eraser Mentioned in Mathew's answer might be better, don't know ), and do the factory reset on your phone. This way any data bits will be extremely difficult to recover (near impossible depending on password chosen), even with specialized hardware.

Open the sdcard on your pc and format it. done. it's not recoverable whatsoever because it's a flash disk.
to wipe all personal data you need to do a factory reset.
or wipe /data (and /cache) manually

Nothing at all is on your memory card. SMS messages etc aren't actually stored on the SD card. When you do a hard reset all of your data is erased completely.


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Droid RAZR MAXX encryption downgrades max camera resolution
After submitting my DROID RAZR MAXX to the whims of my company's OLA for getting access to work mail, calendar, and contacts, it was encrypted, including the storage.  Encryption notified me, before proceeding, that my HD video recording resolution would be downgraded from 1080p to 720.  Sure enough, after it was complete, the max video recording resolution option was "DVD (720 x480)".  However, my front-facing camera can still do 720p.
Was this documented anywhere? Or is this something an ActiveSync admin can push? This cuaght me by surprise.

It is the result of encryption, unfortunately I cannot find any documentation.
My device (Razr) showed the same message when I enabled device encryption on setup, before I had any ActiveSync accounts added.

This forum post suggests that it may be related to your company policy.
If not, it could be that some of the camera hardware could be used for encryption, however that is highly unlikely.

source: Stack Exchange

license: Creative Commons - Attribution Share-Alike - https://creativecommons.org/licenses/by-sa/3.0/

sort: votes


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How can I reset my phone without losing everything?
I have a Samsung Galaxy S I9000, it keeps lagging; freezing and turning on and off by itself. I want to reset it, if I do will I lose all my photos, contacts etc etc..? I can't figure out how to transfer everything on to my SD card.

This may be useful to you: http://android.stackexchange.com/questions/12802/factory-reset-to-restore-performance-what-are-the-disadvantages

If you do a factory reset, your SD card will not be touched.  Your pics, etc will all stay put.  If you've selected your Google account as the default way to store your contacts, they will all repopulated from Google after you set up your phone.
If you want to be sure you're saving settings, etc. download Titanium Backup from the Google Playstore and do a full backup.  After you've reset your phone, reinstall Ti and then do a restore from back up.  Super simple!

BE careful! Some Stock ROM's will offer the option to erase the SDCard if about to perform a factory reset, if that's the case, ensure its unchecked! :)

And keep in mind that Titanium Backup requires root. If your device is not rooted, but runs Android 4.0 or higher, take a look at Full Backup of non-rooted devices.

Resetting your phone to factory settings will clear all the data on your phone memory, that is your contacts, calendars, applications downloaded from android market.
Factory resetting can be done in settings (Navigation: Settings -> Privacy Settings -> Factory data reset)
Data backup can be done in settings (Navigation: Settings -> Privacy Settings -> Backup my data).
Backup data can be restored after resetting.
Certain applications give the option of data backup, if you have installed any apps from market, check for the option.
Data backup can also be done using the software CD provided with the phone.
Your photos, audio mp3s, and videos will USUALLY reside in SD card and will NOT be erased. But its better you take out the memory card, and then go ahead resetting.

Your data backup recommendation is not available on most versions of Android.

There are few ways you can reset your Android phone without losing anything. Backup most your stuff on your SD card, and synchronize your phone with a Gmail account so you won't lose any contacts. If you don't want to do that, there's an app called My Backup Pro that can do the same job. You can read more about how to ensure you don't lose any important information with a factory reset here.

There's an app My Backup Pro which you could use. From the description it allows you to:

Backup (with schedule option) to our online secure servers, or SD card, your Applications, Photos, Music, Videos, Contacts, Call log, Browser Bookmarks, SMS (text messages), MMS (message attachments), Calendar, System Settings, Home Screens (including shortcut positions), Alarms, Dictionary, Music Playlists, APNs, and more...

You can read more about it here.

all_licenses: Creative Commons - Attribution Share-Alike - https://creativecommons.org/licenses/by-sa/3.0/


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Restore the encrypted files contents from the Gallery Vault app
I have reset my device and forgot to open the Gallery Vault app, but I still have my encrypted files while unable to open them.
How can I restore the contents of the encrypted files?

Reading the FAQ available at ThinkYeah website, they state that the encrypted files are stored in the folder .thinkyeah/galleryvault located on the SD card.
Further more, they state that if you install the application again and use your previous password you are able to retrieve all of your secured files.
Relevant FAQ Entries:

Where are the encrypted files?

If Gallery Vault was uninstalled, can I find my photos and vedios back?

Since the encrypted files are located on the SDCard, and assuming that the encryption key/file is located on that location or within the vault file itself, you are able to recover your files installing the application and using your old password. Since you already mentioned that you still have the "vault" file, all appears to be in order, go ahead and try.

Gallery Vault uses encryption to hide media. If you have done a Factory Reset, then there is no way to recover your previous data, even if the file still "exists". To decrypt, you would need some sort of decryption key or file, and chances are you lost it when you did a Factory Reset.

license: Creative Commons - Attribution Share-Alike - https://creativecommons.org/licenses/by-sa/4.0/


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Installing apps on external SD card on Android 4.2.2 Jelly Bean
I am using Android 4.2.2 Jelly Bean on TI OMAP 5 platform. I want to install applications on an external SD card, but even if a lot of space is free (more than 25MB), I am getting an error "Insufficient storage".

Is it possible to install applications on an external SD card in Jelly Bean?
How can I move an application installed on internal memory to an external SD card?

Please check the insufficient-memory tag-wiki for details and first-aid.

http://www.instructables.com/id/How-to-install-apps-onto-your-SD-Card-No-Root/

You can't install directly to the SD card. In many cases you can move much of the app and its data to the SD card, but the OS and the app have to support it. Even then, you need to install normally and then move it.

Not 100% correct. One can set the "install target" to "2" (sd-card), so apps supporting this will get installed there. Culprit is, though, that prior to installation the .apk must be downloaded. And this download goes to /data/local, which is on internal storage. Second culprit is the app in question must support to be installed on sdcard. See the insufficient-memory tag-wiki for details ;)

Thanks , but how will i move the applications from internal to external as their is no support of move to sdcard in settings app in jellybean

You can't install an app to SD unless your phone has internal storage, but you can move the data of your desired app. For that, follow this: Open Settings > More > App manager > then open the apps you want to move to SD card, then select "Move to SD storage".

all_licenses: Creative Commons - Attribution Share-Alike - https://creativecommons.org/licenses/by-sa/4.0/


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Get common name of an app given its package name
I'm interested in a way to go from the package name (e.g. com.android.providers.telephony) to its common name (Phone).
I'd like to know if there's ADB/shell command (from the phone), or any system/preinstalled app.
I know that a bunch of apps reveal both once you could pin the app in it. – In Android 4.x (tried with 4.2.2) you can even use the system app manager to confirm the package name once you found and selected the app via the common name.

Robert, if you're still looking for this, my answer here might be interesting for you. In short: CM-based ROMS with Kitkat or later ship with aapt; and if yours does not, you can install it yourself (root required, though). Having that, a one-liner calling to ADB does the job for you. Details "over there" ;)

For users who are willing to use an app based solution for this: https://android.stackexchange.com/q/19865/96277

If you haven't given up on Android apps yet, you can use Titanium Backup. It lets you search either by app name or package name.

Screenshot of Titanium Backup (click image for larger variant)

is there a way to get it to show the package name for an app?


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How can I prevent someone from tracking my Android phone? Otherwise, how can I fake the location?
I have a Samsung Galaxy. I have heard that I can turn off my data, GPS locator, or the phone itself but I would like to be able to keep my phone with me and on at all times and have normal functionality.
How can I prevent someone from tracking my device? Is there a way I can route the tracker to a specific location when I want so that I could just tell them I am at that location even when I'm not?
I am willing to root my device and install any kernel or ROM; whatever it takes.

How are they tracking your phone? Did they install anything?

If you believe that someone is tracking you with your Android, do this

Back up your favorite apps.
Factory reset the phone.
Encrypt your phone. (This way nobody else can access your phone)
For extra protection, you may add a PIN so that you can lock down them from accessing your settings.
If you are going a step further, you can lock down your phone in kiosk mode with the help of any custom launchers or anything like that.

Dan already pointed out that this is more a social problem. Talk with your parents, express how you feel about this. The feeling of being constantly monitored is sure not very pleasant.
That said, the only way to make it hard for someone to monitor the location with the help of your Android phone is by ensuring that you have a clean initial setup and a locked-down system in terms of screen lock and debugging disabled. This comes down to that if your phone was never compromised before and you prevent all unauthorized access to the phone, it's hard to install surveillance software.  It has nothing to do with root access or a custom ROM. In fact, having root access may be counterproductive, since you want a tamper-proof system.
If they use other means of tracking (e.g. GSM-based ones), which is unlikely for individuals, then there is nothing to prevent that.

Some mobile carriers offer services to track children/family/friends which will trace phone location through cell towers and notify of changes.
You'll have to put your SIM card into another phone and leave it at a friend's place to fake your location. You can also set up call forwarding to your new SIM if they decide to call and check.

To be sure you have no additional tracking software installed, you may use these 3 methods.
Method 1

Check logged Google accounts Settings -> Accounts: be sure to use only your account for all Google products/services (Play Store, Maps, Android Phone Manager - this one can track devices). To be 100% sure, only you are the administrator of your phone, set up a new Google account for yourself.

In Settings -> Security -> Device Administrators, check programs set as admins -> remove all if there are any. (If you find one PIN-protected, use Method 2 with hard/factory reset.)

Remove all additional apps that may be used for tracking  Settings -> Apps -> Downloaded - select and remove all, one by one (some might be PIN-protected, then go to Method 2).

In Settings -> Location Services, disable the Access my location option and turn off GPS.

Disable Mobile data transfer.

Set up and enable PIN and Password (Settings -> Security), and enable screen protection with a PIN number.

Method 2
Manually back up your data (music, pictures) and copy it with file explorer/manager onto an SD card. SMS can be backed up with SMS Backup + App, sync contacts with Google Account. (for security reasons, set yourself a new fresh one and use it to back up and restore your data.)
Then, go to Settings -> Backup and Reset, choose Factory Data Reset important - uncheck Automatic Restore checkbox. After a hard reset, choose your own new Google account for Google services (set up a new one).
Next, set up and enable Password (Settings -> Security), and enable screen protection with PIN.
Additional info
Apps that can track your phone

Google Device Manager
Kaspersky Mobile Security (This one is tricky and hard to erase. I use this one with my phone.)
Avast Mobile Security / Avast Anti-Theft (This one sends an email notification or SMS when the phone leaves the designated area. It also may be hard to remove. You will need a hard reset to get rid of these two). Anti-Theft hides itself as an update agent in apps.
Track My Phone
Phone Locator

...and many many more. Check them in Google Play (You may find one installed on your phone. If so, remove it.)
Method 3 (100% works)
Buy another cheap smartphone and a second SIM card. Install on this new phone, let's call it decoy, the software they have installed on your old phone for tracking you (you will find it in Settings -> Apps on your Galaxy), log them in, put it into that second phone your old SIM card, redirect all phone calls to you a new number which you will use with your factory erased / clean Galaxy with new accounts logged in. Leave the second (decoy) phone in a place you are supposed to be.
If you can't find the app which they are using to track you down or don't have passwords to log them on a second phone, use the reverse process: buy yourself another phone with a new number (can be prepaid) and redirect all calls onto the new one from your old SIM card and use the old phone as a decoy.

Right of privacy of a phone he doesn't pay for? Anyways, Tom, I believe you let yourself go through hard and sinuous paths of reasoning but missed the main question: "is there a way i can route the tracker to a specific location when i want so that i could just tell them i am at that location even when im not?". With all your explanation you can remove a tracking app, but you can't stop his parents to notice that his app has been uninstalled. Am I wrong?

There are two questions as I see it, first: how can i prevent my parents from tracking my device? And maybe if there is chance, 2nd "is there a way i can route the tracker to a specific location when i want so " 2. Right of privacy of a phone he doesn't pay for? So man do you think if his parents pay for his food, phone, clothes they do have right to treat him as (kind-of) their property, whithout rights like: dignity, autonomy, self-reliance, right to have privacy, small secrets? 3. Reply was written via phone - that's why it was not preformated.


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How to disable vibration when typing on HTC One X?
I have HTC One X. Each time I'm texting on WhatsApp, it's always vibrating. Since it's using too much battery and it's really annoying, I want to disable it.
Under "Settings", there's no "Sound" setting or "Language and Keyboard", there is only "Language & Input".
How do I disable vibration when typing?

Go to Settings > Language & keyboard > HTC Sense Input and turn off the option of Vibration feedback. It is present in both HTC Sense 4 and 5. It is even described in this YouTube video.


text:
No tab preview on Chrome
I have Blu studio 5.0 on Android 4.1. When I open the tab viewer in Chrome, all I get is a list of open tabs and no preview of them. Does anyone know why?
I have this problem on the beta and regular version.

An update to Andrew's answer that worked for me: the accessibility tab switcher is not an experimental feature anymore, you can find it under "Configuration>Accessibility", as "simplified view for open tabs".

You've (accidentally) enabled Accessibility Tab Switcher.
From AndroidPolice,

Chrome Beta for Android has an experimental "Accessibility Tab Switcher" flag that'll allow you to switch tabs in a compact, pleasing interface, also enabling you to bring back closed tabs with a handy "undo" button.

You can find the setting on chrome://flags/#enable-accessibility-tab-switcher

I just tried on Nexus 5, Android 6.0.1, Chrome 50, but it didn't seem to work though.

Try going into settings -> Application Manager -> Chrome -> Force Stop -> Clear data (Warning this will clear your saved passwords so take a note of them!) -> Clear cache. I hope this works for you it did for me. If this doesn't work try installing another browser such as firefox.


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Why app updates download entire app instead of only "updates"?
I find it rather strange that for updating an app in Android (or even iOS) the entire app is downloaded instead of only the actual "Updates".
The reason I find this strange is because in Windows while updating an app, only the update files are downloaded -- not the entire app -- which is more practical as it saves both time and data usage.
This would seem trivial to most, but when you need to download a huge app just for a tiny feature addition/bug fix it becomes a real PITA.
Does anyone have an explanation as to why this model was implemented?

As far as I know it does download just the updates (referred to as the "delta") on Jellybean 4.1 and above. Obviously the initial install is the full app but updates only download the data that has changed from the current installed version (i.e. the "delta" of it).
You won't see anything different when updating most app, it will still look like it's downloading the full app but on some larger apps you will see if 'jump' parts of the download which indicates that it is just getting the delta.
Engadget and AndroidCentral both have articles indicating that the Play store does provide delta updates

Just how "large" is the larger app? I mean I still need to download the entire Temple Run 2 just to have Usain Bolt! Anyway thanks for sharing the articles.

I'm not sure. I know that for something like Asphalt 6 (which is at least 1GB) that it has only downloaded the changes in the past.It might be that it is only applied to large updates, or maybe it wasn't possible to generate the delta for the Temple Run 2 update for some reason? They may only create the delta when less than a certain percentage has changed. (NB. All of this is just my thoughts)

Delta aren't instantaneous. If you download the update just after it has been pushed to the play store, delta may not have been generated for now. (just a guess)

As an Android Developer I thought the same thing, it was frustrating to say the least because one time I forgot to change one line of code, and it went out with that one line wrong, which caused the app to spit out log statements left and right.
This question has been asked on SO, but it is also on-topic here and I think this question should stay.
SO Question: https://stackoverflow.com/questions/18045290/for-mobile-app-updates-why-does-the-entire-app-need-to-be-downloaded-again
As an Android Developer, my guess would have to be the way the software is packaged. Every android app gets packed into a compressed file called an .apk. This file holds all of the code, layout files and images used to make the app function. It is kind of hard to update just part of a file, especially when it is compressed and if the developer has security features enabled like ProGuard, it would be next to impossible to implement a patch.
I'm sure Google also had some security reasons for not allowing patches. Code patches tend to leave unanticipated security holes and vulnerabilities.

AFAIK delta updates have been introduced to GPlay about half a year ago. And yes, there is also something like binary diffs. Basically, the .apk could also simply be unpacked on Google servers to compare between versions and create the necessary deltas. Though I don't know how it is actually done.

I am very interested in this now, do you have to opt into this as a developer or does Google manage this for you?

@John Google does it automatically, no actions need to be taken by the developer.

Basically Android application package file (*.apk) file is created after the app code is ready to publish,
This file is created after compilation and building and from DALVIK conversion process,
This file contains all of the resources i.e your images, audio, layouts, classes,
And As far as windows concern the .NET framework and Linux framework both works in different manner...
If you want to replace only certain code of the you can do so in android but for security you need to sign that app again..
What DALVIK do is irreversible process, so if new function is added how the old version will access it without knowing it??
That's why it requires to update whole app so that it can work and function properly..


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Does anyone know, or know how to determine, the dimensions of the Samsung Galaxy S6+ screen in pixels?
The reason I want to know is because I want to make a wallpaper for my girlfriend that exactly fits the screen

Samsung devices allow, under Developer Options, the ability to mark screen locations.
See Settings > Developer Options > Input
Select
Show Touches,
Show pointer location
Move to the points desired, and note their coordinates.
If you find the constant coordinates undesitreable, turn OFF the options after the operation is complete to your satisfaction.
To turn on Developer Options if needed:

Go to app drawer and open Settings
Go to bottom and tap About device
Tap repeatedly Build number 7 times. Starting at 3rd tap, you'll see a toast saying You are now X steps away from being a developer.

According to GSMArena, Galaxy S6 plus is equipped with a 5.5 inch, 1080x1920 screen at 401 DPI.
Not much info can be found for it, as it seems to be a carrier-specific model.

@GreedySkull
I think what you mean is the resolution
The screen is 5.1 inch high resolution
Quad HD 1440×2560 pixel display
 with 577 pixels per inch.
Ensure the wallpaper you're making has a size of 1440×2560 so as to fit screen correctly


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It that possible for the wallpaper cache saved in Android /data folder being hacked? (Not Rooted)
My boyfriend was kidding with me, setting my private photo as wallpaper.
I deleted the photo but the wallpaper still remains there...
After browsing through some information on the net, I found out that the wallpaper is saved to a folder which only can be accessed after rooting.
If I change the wallpaper, will the previous wallpaper automatically be deleted?
If not, since it is saving in a folder which only can be accessed after rooting, is it safe? Or does it still have a possibility of being hacked by others?

Deleting the photo doesn't remove the wallpaper, that's correct. If you change it, the cache gets overwritten and the cached file will be deleted. Also, I don't think this is even worth such a complex question ;)

As New-To-IT said, if you want to be 100% sure all traces of the photo are removed, you should wipe the cache.
However, to answer your first question, whether changing the wallpaper automatically deletes the previous wallpaper from the location where the system stores the current wallpaper:
Yes. Or, more accurately, the previous wallpaper is overwritten with the new one, because the same filename is always used. The current wallpaper is stored in an image file that's actually named "wallpaper". When you select a new wallpaper, the image file you select is copied to the standard location (either /data/system/users/<userid> or /data/data/com.android.settings/files, depending on which version) and given the same filename, so the previous "wallpaper" file is overwritten. (Of course, that doesn't delete the image from the original location, but you've already deleted it from there.)
Regarding your second question, it's not entirely clear what you mean by "possibility of being hacked". If you want to know whether anyone else who has physical access to the phone can access the file, the answer is that as long as the phone is not rooted, there's no way to browse to the current wallpaper file. But yes, there is a possibility of accessing the file by hacking, of course: it's possible to root the phone and then access the file. But the answer to the first question makes this question moot, because as long as the image is present in that system location, anyone who has the phone can plainly see it as the home screen background, and if you change the wallpaper then the image is no longer stored there.

If you'd like to be safe, you could always wipe the cache of the phone:

1. Turn off your Galaxy S3.
2. Hold down the Home and Volume Up keys.
3. Press and hold the Power button while still holding the other keys
4. As soon as you see the Samsung logo, release all keys/buttons.
5. Press on the Volume Down key to tab down to “wipe cache partition”
6. Once it is highlighted, press the Power button to select it.
7. On the next page, Press the Volume down button to highlight "yes" and press the
   Power button to select it.
8. Wait for a few seconds for the phone to clear the data.
9. Press the Power button on the next page to select “reboot system now.”
10.Wait for your phone to reboot.

*This will not wipe any of your information stored on phone, pictures, video's, apps, contacts, etc. will all be safe

Source

Just navigate to below app in settings menu and click clear data button...viola it works....
Settings → Apps → All → search com.android.wallpapercropper

Settings->
    Advanced->
        Storage->
            Cached-data->
                "Clear cached data?"
                Click OK


text:
Fail to receive WhatsApp messages from a specific contact
I am not able to receive WhatsApp messages from a specific contact while I am able to send them messages.
All other contacts appear to be receiving and having no issues with the sending process. I also don't block the contact.
What's the possible cause? How to fix this, or any workaround?

Besides the contact being blocked, have you checked if the contact is properly inserted? (check my links)

Community bump prevention: this question was closed because the question seems to have been abandoned (OP hasn't visited the site after posting the question, and no answers have score above 0). If anyone can evaluate the existing answers, feel free to vote accordingly and reopen the question (or mod-flag the question requesting for reopening). For anyone else having the same issue, please post a new question and refer to this question as additional context.

I realized I had a very symilar problem with a contact today.
Creating a group with only the problematic contact was a successful workaround, the final solution was deleting the original chat that stopped working and creating a new one.


text:
Set the calendar display to the correct timezone on Samsung Galaxy Nexus
How do I set the calendar display to the correct timezone on my Samsung Galaxy Nexus phone?
For instance, editing of a calendar entry shows 14:00 [Montreal time], but the event display time in the calendar's weekly view for the same entry is 17:00.

You might be aware of the common fact that the date,time,time zone set in the device settings will act as a reference/source for various apps like calender,logs,messages.So whatever be the date,time setting your settings will be reflected to all the required apps.(factory widgets,custom installed apps). So if you want the correct time to be reflected in the calender as well you need to change the source of the date,time.
Note:-Some apps like what's app have inbuilt detection methods through which the app will give you a warning in change of time when compared to the previous set time.(i.e. if there is a change in the time of app and time of device then it will give you a warning to set the correct time and date and the app will not start until and unless the time is correct)
As @geff has suggested please try changing the Time zone of the phone.

This is from the point of view of a Samsung Galaxy S4.
I would look at two things:

Timezone of phone: system settings > more > date and time > select timezone
Timezone of calendar: S Planner app: settings > lock timezone and settings > select timezone

I'd make sure both of them are the same. Setting them manually instead of auto might be a better configuration.


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Google Maps always zooming out
The Google Maps on my Android phone got updated and now everything's screwed up. It keeps automatically zooming way out. It does this whenever the phone changes orientation or when the screen is locked. How do I keep it from automatically zooming out?
The version is 7.1.0 (#701000802).
Here's an example. It automatically goes to the second image after a few seconds, I think because I move the phone.

Click the images for larger variant
May I know the reason why it happens? Maybe it's not a problem with Google Maps but my device.

The app does this because you're not in navigation mode, you're browsing the route. It zooms out to fit the entire route on your screen when you reorient the device. If you don't want it to zoom, press the navigation button in the lower right corner and optionally switch off voice navigation.

How do you get back into navigation mode? I don't see it in the settings menu.

This answer is partially correct. Take note that Maps doesn't provide navigation mode with public transportation anymore (as shown with 'train' icon on the screenshot). Also, pressing the auto-orientation button doesn't prevent zooming out when the device orientation changes.


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Synchronizing signature from desktop GMail to Android GMail app
I need to send email from road and want my professional signature to appear. Our company policy requires use of "real" signature when using mobile email and I can't adhere to my own policy.
How do I sync my desktop GMail signature in Android? It works on my employees' iPhones, but I couldn't figure it out how to do that in Android. I know I can type a signature in, but it's just not the same as what appears on our desktops.

any updates in 2021?

The feature you are looking for is not available with the Gmail app (yet). (source). You can't even add any type of rich-text signature to your mobile app. Devs say that this feature is still being worked on. The only option available to you is to add a simple text signature through the app.

Wow! That's amazing; I thought I just couldn't figure it out.  Thanks for the answer.  Seems like such a simple feature.  I thought for sure that since it works on the iphones it must work on a google phone....hope they fix it soon.  Thanks again.

any updates in 2021?

The workaround I use is one of the Labs features: Canned responses.
On my Android device I then use an app called "Responses" that takes your canned responses from the associated Gmail account and copies it to your clipboard.
You then just paste it into your email. You can even have images, etc., in the canned responses.


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Huawei Ascend P1 is sending SMS automatically everyday
I bought a Huawei Ascend P1 and installed some apps. But for the past 3-4 days, I see an alert that an SMS has been sent and 1.50 INR has been deducted. How will it unlock and send an SMS?
I found from my mobile carrier that the SMS was sent to the same number. The following apps have the SEND_SMS permission, but I am confused because most of them are system apps, and a few like WhatsApp & True Caller are trusted. I really don't understand what's going on as I see that the questions related to this topic seem different.

"Rayman Jungle Run" looks suspicious.

Rayman doesn't have SMS permission from the play store. Did you get a fake copy, or did you sideload an illegal one? That would be my first guess on it.

@RossC, Confirmed...It doesn't.

Note: As indicated by 3 answers, the real problem is indeed on Huawei. While Rayman Jungle Run is certainly suspicious, it's a red-herring on this question.

The list of apps in your screenshot includes "Rayman Jungle Run". This doesn't have any reason to send SMS messages, and the genuine game listed on Google Play doesn't require that permission.
It seems likely that you've been taken in by a fake or trojan that pretends to be the game you wanted, but in fact sends SMS to premium numbers behind your back, to make money. This is commonplace if you try to download commercial games from game piracy sites. There are also sometimes quite convincing fakes on Google Play.
Uninstall the app immediately. If the messages stop, and you're convinced that was the culprit, you should report it to the site you downloaded it from. If you downloaded it from Google Play, then you can report it directly within the Play Store app, and Google will remove it.
If your country has a government agency responsible for policing premium phone and SMS services, you should report the app and the number it sent messages to to that agency. They'll want to know that the SMS number has been used for fraudulent purposes, and may be able to shut down the company that originated the scam.

Thankyou so much for your answer I'llcheck it.. but for my problem I got solution please see my answer.

I found the problematical app. This is related to Huawei's app.
After searching/tracing the number, I found that the number the SMS was sent to was Huawei Server number. It will work like this:
When you put SIM card for the first time, it will auto send an SMS to that number for registering the start of warranty period. But in my case, I am facing network issues, so whenever my network disconnects & reestablishes, it will send SMS every time it happens. I only cannot figure out why it's still sending SMS if it's one time process.
Anyway, there is an app in my list called com.android.huawei.gpms which is responsible for this activity. So I simply go to Settings - Apps - All - com.android.huawei.gpms - Disable, and that weird problem was solved for now.

It is not a any app or virus, It is defect of Huawei software, you need to install fix available at Huawei support->Download site "Auto Sms Fixed Software"
http://www.huaweidevice.co.in/Support/Downloads/

As @saurin said, it is due to a bug, and they released update.
Here is snapshot of reply email from Huawei with instructions.

Glad it is fixed. Please mark your or @saurin's solution as answer.


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Calls and texts in tablet with mini-USB SIM adaptor
I was hoping to find out if I can use my 10.1 inch Android tablet running Android 4.1 for calls and texts using a SIM card attached through a mini-USB (or if not, how?). Surely there must be a way.

I think what you're looking for is a full-blown 3G USB dongle, not just a SIM card adapter. See, for example: Can I receive/send SMS of cell phone number with a tablet using dongle?
A SIM card adapter would simply be a device that can read the contents of the SIM card and possibly edit it. So it's pretty much like an SD card reader. To send and receive text messages and voice calls, you still need a transmitter, which is what a USB 3G dongle will provide (if your tablet doesn't have built-in 3G support). However, I'm not sure if you can use a 3G dongle to make voice calls, although SMS is pretty much a standard feature for such devices.

I have a 10.1 in tablet with a SIM card. Tablets lack the hardware to make cellular calls - Those with cellular SIM cards can only use it to access the internet.  You might use a service like Skype but I am not that familiar with those types of services.

I have a Freelander 9.3" tablet with sim slot.  I have used it to call as long as I have a bluetooth headset.  Got it from China, but the vendor doesn't carry it any more see item # CVAGW-104152.  It works great if you need to use your computer AND make a call too.  It is quite handy, but not pocket worthy...  Wished I could get a newer version for my wife.


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Terminal commands for accessing clipboard
I am trying to access the clipboard from the terminal, but there is no pbcopy or pbpaste command.
I want to use a command, because if I can access the clipboard with a command, then I can more easily integrate clipboard access into the program that I am writing. It is for a C program and a Python program. For C, I use  system("pbpaste") and for Python, I use os.system("pbpaste").
Is there an alternative to this command? How can I access the clipboard from the terminal?

If you advise which terminal this is for. Termux has a command line access to clipboard via termux-api


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'fastboot reboot' works but not the other fastboot commands
I know most MediaTek devices don't support fastboot, but I have a Canvas Knight (MT6592) which does reboot into fastboot mode when I use adb reboot bootloader.
Here, fastboot devices detects my device and fastboot reboot reboots it. But if I try:

fastboot oem device-info : ran for over 10 minutes with no result. I finally stopped it using Ctrl+PsBrk.
fastboot oem get_unlock_state : ran for 2.24 minutes and ended up with this error:
FAILED (status read failed (Too many links))

fastboot oem device-info : after (2), this also gives an error imediately:
FAILED (command write failed (Too many links))

fastboot devices : ??????????????? device
fastboot reboot :
rebooting
FINISHED: -0.000s

However, the device doesn't reboot until I force it to using the power button.
Any idea what the problem is? I know that fastboot is unsupported and it may have problems, but if it is unsupported shouldn't it not work at all?
(No problems on the computer end. Same commands on a Nexus 9 work perfectly, and after rebooting the phone fastboot devices and fastboot reboot works, but then again the same problem)

Also, I later learned that these devices have a very truncated support for fastboot, and I managed to root it anyway.

Having similar issues... did you manage to find a fix?

@Warrior, check my previous comment. There isn't a fix unless you hack the bootloader to properly support fastboot. Anyway, Mediatek devices don't support fastboot properly unless it's an Android One, maybe, or in other extremely rare cases. BTW, if you are on 4.4.2, KingRoot can root it.


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S4 Wont turn on unless removing battery then turns off after 2 seconds
So, my Galaxy S4 turned off randomly today during charge. I attempted turning it back on via the power button but it would not respond.
Then I tried taking out the battery and replacing it, the device vibrates with the Galaxy S4 logo showing up for about a couple seconds, then the screen goes blank again.
I even tried placing a battery from a different S4 - still doesn't work.
Anybody know what's wrong with my device?
Edit: Flat Surface trick doesn't work. It vibrates sometimes but then it turns off.

Have you tried to see if  your battery  works in another S4?
During the boot process, is the power cable connected?  Does it make a difference between the short boot time and whether or not a power cable is connected?

No cable is connected. i tried another battery.

It could be a app or setting that Is causing the system to not function or conflicting with it. no harm in trying , worth a try if nothing else works.

Can you improve your answer by adding details, please.

Try booting into recovery mode and seeing if it turns of there
if it doesn't that means your software is corrupt and a factory reset/format cache from recovery mode might fix it
to access recovery mode hold power button+ volume up + home button at the same time while the device is off

your software is corrupt -- In particular, which software is this which can be dealt with a simple reset?

Try hitting it on a table on the power button or using n air compressor the power button is most likely stuck

I had the same problem. Most likely it's the power button problem, where it's always stucked inside, or depressed in. That makes your phone turns on then turns off by itself. I had the same problem. I found this great video on how to fixes it.
https://www.youtube.com/watch?v=2l_6fwzuIwA

Consider adding the info from the video into the answer, since 1) not everyone has good internet access to play a video, 2) if the video goes down the worth of your answer would decrease considerably.


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Error: Process aborted, when installing zip in Moto Razr XT910
I rooted my Motorola Razr XT910 already, then I followed the process and everything went excellent. But when I wiped my data, cache, and the dalvik cache, and then choosing install zip, I received the message that the process aborted!
I realized that I didn't backup and reset. So my ROM (the last one) was gone! I thought to transfer other files for the ROM I wanted to install, but everything said that it aborted! All of them.
Every time I plugged my phone LED color was white. I thought it means that there is no battery, and the computer isn't strong enough to charge the phone.

I plugged it into the wall and it turned on showing Motorola's logo (happens every time you turn it on) and remains stuck on that logo.
I plugged it out and the logo was gone.
I plugged back in and the logo showed up again, so I thought it's just the battery. After 12 hours and more the logo was still there.
I plugged out the phone from charging, and the logo stayed there.
I plugged it into the computer and the white LED light lit up.

How do I resolve this highly problematic issue?

Try downloading the correct ROM. It seems like your .zip file is not adequate.
To transfer it to the phone, enter recovery, and then tranfer either byadb push command, or by entering "ADB sideload" option (in recovery), and then using adb sideload command on PC.


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How to not lose credentials, form data, and active tabs while still use DU Speed Booster app?
I have installed DU Speed Booster app and use it regularly on my Android Device which I believe is running version 4.4.2 Kit Kat .
I always lose information stored on forms that I would like to maintain, mainly  Login Ids , Passwords, opened tabs I am working with, and more.
Could someone guide me here with this troubling issue?

Lisa, could you please clear these questions? 1. How do you use DU Speed Booster App,  and what is its regards to your question. 2. What browser do you use, Of which you lose the form data and login credentials. 3. What are you talking about .memo and youtube Please try to be as much as informative you can be. One cannot make house without clay. And do not worry we will get the solution definately. Lastly, welcome to stackexchange :)

Lisa, You mean Login data is lost when you use the DU Speed Booster app? Add the browser you are using to the ignore list in that app.(telling DU speed booster not to clear login data).

Lucky,   Thank you very much... Yes that is exactly the help I was hoping for..  again Thank You.

As @Lucky says in the comment above:
Add the browser you are using to the ignore list within DU Speed Booster, the app cache will be retained when clearing the cache.

Don't take it otherwise, but I think this should've been a Wiki Answer since the content is already covered by Lucky in this comment, or at least a mention of his name and comment should be done.

@Firelord good shout, I was hoping that Lucky would post an answer anyway, so I could delete mine, but Wiki Answer does the job too.


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Fail in restoring WhatsApp chats
I followed the steps below to restore WhatsApp chats:

On my old phone, I backed up my chats to an SD card
Insert the SD card into the new phone
Moved the whole WhatsApp folder to the new phone from the SD card
Install WhatsApp on a new phone and register and then it said there is a backup file found, asked if I would like to restore it.
I clicked restore, so WhatsApp processes.... for around 1-2 minutes, WhatsApp quits itself, prompt "Unfortunately, WhatsApp has stopped"

The WhatsApp version on both my old and new phone is the same.
So how can I restore my chat history?

I have the same problem except that WhatsApp doesn't even detect my backed up messages! No restore option is shown when I install WhatsApp.

Make sure that your phone is in airplane mode. Sometimes that will work.

Try this, from the Whatsapp FAQ.

To restore from a backup, follow these steps:

Uninstall WhatsApp.
Decide which backup file you want to restore.
Rename that file from "msgstore-YYYY-MM-DD.1.db.crypt" to
  "msgstore.db.crypt"
Install WhatsApp
When asked to restore, tap [Restore]

thanks for the answer... but nope... didn't help...

When you put the backup file onto your new phone, make sure you put it in the WhatsApp folder that is located on your phone and not the SD card in your new phone. There are 2 WhatsApp folders, one on your phone and one on the SD card, so make sure you put the backup onto your new phone because I kept putting it in the SD card folder and it didn't work.

This worked as well for me. No idea why WhatsApp does not consider the SD card folder anymore.

The file name in the Whatsapp/Database/ folder should be msgstore.db.crypt. If it has a date, etc. then rename it to msgstore.db.crypt only. In my case, it was msgstore.db.crypt8. I rename it msgstore.db.crypt and it worked.

Apparently, there are issues with the restore when you use a different phone number. I could not completely figure out what caused the problems in my case, but I was finally able to restore my data when I used the same cell phone number for activation (I have a dual SIM phone) as I used on my old phone.
So, I guess the bottom line is:

Use the same Google account ("@gmail" vs "@googlemail")
Use the same cell phone number


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Google Search app cannot find installed apps
My Android phone is Samsung Galaxy Grand (I9082). I rooted it and flashed Google apps into it. Everything works well except for this: Google Search just cannot find installed apps for me. I believe my settings are correct.
Here are some screenshots:

As you can see in the screenshots, I have Kindle installed, but Google Search simply cannot find it for me. Actually, it cannot find any installed apps for me.
Any idea what could possibly cause this?

This is just Google wanting you to use the search box to generate paid clicks for them. It doesn't make them any money to help you find apps on your device, the search box is there for a reason - to send you to the web and click on ads.

This doesn't really answer the question since Google Search is, in fact, able to search for local data on phones, as shown in this and this articles.

actually I found if you pull UP on the search bar, there's a separate search which is the built in phone apps search. nicely hidden tho!


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Is it possible to emulate previous OS in an Android Device?
I'm a developer and I want to test the behavior of an app I'm building in different versions of Android. Since I have JB, I want to try my app in ICS and GB to see how it works, with minimal details such as the action bar that was added in HC.
I know about the AVD (Android Virtual Device), but it's just not smooth enough for me. That's why I ask if it's possible to do it with my own device or if I have to get other devices with a previous OS. I'm not worried about if an app is supported or not.
Is it possible (through a menu setting or an app or something) to emulate a previous version of Android OS? For example, my device is running ICS 4.0.4 and I want it just for a moment to try an app have it in GB 2.3.6 or GB 2.3.3 or even further?

It's possible to downgrade, but I'm not so sure about an "emulator".

Why not use android x86 emulator, which is faster than AVD, AVD uses ARMv7 instruction set which is translated to x86 therefore deemed "slow"?

Also, have you searched StackOverflow which would be a better audience as its more focused on development rather than here! PS You will not be able to get Honeycomb as that's discontinued, closed off, not distributed anymore!

I'll definately try the x86 emulator, thanks! The question I think belongs in here, because is not a purely programatically question.

You should try http://www.genymotion.com/

This question seems more relevant today than before.
There's something called VMOS, a virtual machine that runs Android on Android.
https://www.vmos.com
Then there's this repo with a downloadable APK, which has links to VMOS Pro ROMs and other VM stuff.
https://github.com/Aeman105/vmos_resources#%EF%B8%8F-wip
There are other alternatives too, like Twoyi and Vphonegaga.

Rightly said +1, I prefer Twoyi due to its open sourced nature and customisability.


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Bug Report and Power menu - Bug Report function not working on Nexus 7 Android 4.3
I need to gather log info for QA testing.  The settings menu "Bug Report" and the power menu "Bug Report" functions don't work for me on my Nexus 7 running Jellybean 4.3 (don't know if it ever worked because I just found out about the function).  I get a popup saying "this will take a while..." and after that nothing.  Scanning the file system, I don't see anything that looks like a screen capture, and no mail is sent out.
(I can't get the magic {power/sound up/sound down} button combo to work either). The only way I can collect app logging info is by tethering the nexus 7 and using ADB.
Any idea how to get the new bug report mechanism working or why it's not working would be appreciated.

I have discovered the solution (at least for my Nexus 7)! Here's what happens:

Tap Take Bug Report

Take bug report "take a while" popup displays - Tap report

After about 30 seconds, the words "bug report captured" appear for about 2 seconds on the left side of the top menu bar (the one with Time and Wi-Fi and other icons)

An Android icon then displays on the left side (where downloads and other status indicators display)

Swiping down on those icons displays an item "Bug report captured"

Tapping on the item brings up a "Complete action using" popup that includes Gmail

Tapping the Gmail icon allow you to send the bug report text and its associated screen capture to yourself

Pretty nice, but very easy to miss.

Based on what I've read, Make Bug Report is supposed to e-mail the bug report to the GMail account that's tied to your device.
I tried it, but I didn't get any emails. I will update this answer if I find anything new.


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Restore/recover Supersonic Matrix SC-91JB Android tablet
My friend brought me his granddaughter's tablet a couple weeks ago and it was stuck at the Android logo screen, just gray "android" text with white highlight moving across repeatedly.
I already had ADB from some stuff I was doing on another Android tablet some time ago. I was able to connect to the tablet using ADB. I searched around and found the adb shell wipe data command and that got the table working again. Gave tablet back to little girl and everyone happy.
He just brought me the tablet again, same problem, I tried the same solution. This time it did not work. After wiping data, the tablet still gets stuck at the Android logo.
This time I found echo -e 'boot-recovery\0' > /dev/block/nandf; sync, issued the command from within adb shell, rebooted, and got an Android on his back with a green triangle / exclamation point. I hit the Home button and got into the recovery menu, but the only thing I could do was to reboot. What makes this extra tricky is that this tablet has no volume button(s), only Power and Home.
After rebooting, I got the Android logo again. I can still get into adb, so there are signs of life, I just don't know how to proceed. Manufacturer support seems to be non-existent. Don't know how to find a proper factory image to restore the tablet. Don't want to just start hacking and brick it forever.
I don't really know anything about Android but I am a pretty good (i.e. old, haha) computer guy and have general familiarity with operating systems, UNIX/Linux/Posix commands, and hardware. I should be able to follow instructions if anybody out there can walk me through this.
Any suggestion is really appreciated.
P.S. Following is output from the wipe data. I do not recall if I received similar error messages a couple weeks ago when the wipe data fixed the tablet. I don't think the tablet has ever been rooted, etc.:
D:\Users\me\Downloads\Root_with_Restore_by_Bin4ry_v31\stuff>adb shell wipe data
Wiping /data
rmdir() error on '/data/system/dropbox' 'Read-only file system'
rmdir() error on '/data/system/throttle' 'Read-only file system'
rmdir() error on '/data/system/shared_prefs' 'Read-only file system'
rmdir() error on '/data/system' 'Read-only file system'
unlink() error on '/data/backup/pending/journal-133428497.tmp' 'Read-only file system'
rmdir() error on '/data/backup/pending' 'Read-only file system'
unlink() error on '/data/backup/com.android.internal.backup.LocalTransport/@pm@' 'Read-only file system'
unlink() error on '/data/backup/com.android.internal.backup.LocalTransport/@pm@.new' 'Read-only file system'
rmdir() error on '/data/backup/com.android.internal.backup.LocalTransport' 'Read-only file system'
rmdir() error on '/data/backup/com.google.android.backup.BackupTransportService' 'Read-only file system'
unlink() error on '/data/backup/ancestral' 'Read-only file system'
rmdir() error on '/data/backup' 'Read-only file system'
unlink() error on '/data/system.notfirstrun' 'Read-only file system'
unlink() error on '/data/anr/traces.txt' 'Read-only file system'
rmdir() error on '/data/anr' 'Read-only file system'
unlink() error on '/data/cfs.version' 'Read-only file system'
unlink() error on '/data/tombstones/tombstone_00' 'Read-only file system'
unlink() error on '/data/tombstones/tombstone_01' 'Read-only file system'
unlink() error on '/data/tombstones/tombstone_02' 'Read-only file system'
unlink() error on '/data/tombstones/tombstone_03' 'Read-only file system'
unlink() error on '/data/tombstones/tombstone_04' 'Read-only file system'
unlink() error on '/data/tombstones/tombstone_05' 'Read-only file system'
unlink() error on '/data/tombstones/tombstone_06' 'Read-only file system'
unlink() error on '/data/tombstones/tombstone_07' 'Read-only file system'
unlink() error on '/data/tombstones/tombstone_08' 'Read-only file system'
unlink() error on '/data/tombstones/tombstone_09' 'Read-only file system'
rmdir() error on '/data/tombstones' 'Read-only file system'
Done wiping /data

The output suggests /data was mounted read-only, which is quite unusual. You could try to re-mount it first in r/w mode, then the wipe should succeed. Concerning the "factory image", a useful resource might be Where can I find stock or custom ROMs for my Android device?

Playing around with "mount" and various commands, it looked like the /data file system was already mounted r/w. This left me with the option of trying to reload a "factory image".
The link you posted was informative and looks like a good resource, however I am a bit gun-shy about trying to load code that was not specific to the exact device in front of me, as I got burned on that once before (fortunately that one was resolved when the manufacturer finally made the correct stuff available).
I was finally able to get this one working without having to resort to trying a generic A10 image. I ended up using "echo -e 'boot-recovery\0' > /dev/block/nandf; sync", from within adb shell, connected a standard USB Windows keyboard from a PC, then issued "reboot" command still from within adb shell. Again I got an android on his back with a green triangle / exclamation point. I hit the Home button on the tablet and got into the recovery menu, and voila, the arrow keys on the keyboard actually worked to navigate the menu. I selected the option for wipe data / factory reset and used the Power button on the tablet as Enter, used the keyboard again to navigate the "are you sure" prompt, Power button again for Enter. The device showed that it was formatting /data and some other file system (I forget), then when it was done it went back to the recovery menu. I disconnected the USB keyboard and hit Power one more time to reboot, and this time we made it past the Android logo and back to a like-new out-of-box state! Back in business!
The concept of connecting a PC keyboard might be a breakthrough for anyone struggling with recovery on one of these tablets with no volume buttons, though I can't say it was entirely my idea. It briefly flashed through my mind at one point but I didn't actually try it until another post I read somewhere kicked me again. ;-)
p.s. I don't know if the exact sequence of connecting the keyboard etc was significant, but I figured I'd try to be specific just for the benefit of anyone reading this in the future.

OK, got an update. I posted a long thread here a while back and it got deleted. I've got better news this time.

SC-91JB is the same as the Turkish Piranha Business II TAB 9.0. Go to this site (its in Turkish) and download Livesuit and Phoenixsuit from the "Destek" -> "Sürücü ve Yazılımlar" tab.
You can get the firmware there, (it's the plain 4.1 JB ROM) but there's a better place.
Install Phoenixsuit and Livesuit. Make sure you install the drivers.
Connect your tablet and open Phoenixsuit (if updates are available, then update.)
Go to the "Firmware" tab and choose the P422 ROM you downloaded earlier, then hit upgrade.

There's a high chance the upgrade will fail to go through on the first try. When it did on mine, it gave me instructions saying you had to hold the power button down for 10 seconds, then a series of button presses and connecting the tablet to the pc. Make sure you use a good USB cable. When I followed the on screen steps, Livesuit popped up and I was able to force a firmware upgrade. The screen on the tablet stays dark, but the "Firmware" screen on Phoenixsuit will show you the progress.
Once that's finished, My tablet started up with the "Piranha" logo and booted into Android. Of course, Android was in Turkish so I just went into settings and changed the language to English. This ROM includes a lot more apps than the Supersonic one did (including Angry Birds Space.) I just did this update today, so now I will see if the issues we were having were due to the ROM or hardware.
Summary: This method can revive a tablet that is completely dead! So Philip, in your situation, you may simply have to plug in and force the upgrade. A long press of the power button will switch the internals on and off.
This is a super easy way to get your tablet back up and running without having to drop to the command line. Most of all, good luck!!!


text:
How do I get an iTunes podcast into an Android phone?
I want to listen to an iTunes podcast in Podcast Addict app on my Android phone. It doesn't come up in the search engine in the app, and I can't find the link (RSS I guess) on the iTunes site to plug it in manually.
How can I do this?

Podcast Addict v2.3 supports searching and listening to iTunes podcast directly from the app.
You can subscribe to iTunes podcasts (just copy/paste or press on the URL) and you can also browse the iTunes database, so the podcast you're trying to listen will now show up.


text:
Disabling safe mode or removing apps from safe mode
I use a Droid 3 which has not yet been rooted. I need to remove access to the Browser or the Play Store. I already have an app called "program encrypting" which disables access to selected apps unless the user has a password. However, when the user enters safe mode, all downloaded apps are disabled, allowing the user to use the Browser and the Play Store.
I am curious if it is possible to disable safe mode in some way, or changing the button combination to enable it. I would also be fine with removing those applications from appearing in safe mode. I am new to rooting and such, and I would appreciate being able to remove access to these apps in the safest, quickest way possible.

That's something I'd say is impossible without rooting. Safe mode is for the case an app goes havoc, so it must disable all user apps (for the havoc-app to not be started, so one can uninstall it or clear its cache/data). Which means, in order to exclude an app from being excluded (oops), this app must be "converted" to be a system app (i.e. it must be installed on the /system partition) -- which only is possible with root-permissions (or if the app ships within the ROM).

It happens to be that there is a way to block safe mode without rooting, however I am not sure if there's any free way. There's a filter software called MMGuardian, which blocks safe mode by setting the device's password to a master password (which the user doesn't know) and when the device boots up, the password sets itself to the users password. However, since MMGaurdian isn't activated in Safe Mode, in safe mode the password remains the master password, restricting access. Here's a link to their website: https://www.mmguardian.com/ Hope I helped!


text:
Cyanogenmod 7.2 Install Method
I have a quick question about installing the new Cyanogenmod rom. Would installing it over the current 7.1 rom without wiping data and cache work? Or would I have to do it every time I install a new one?

You can generally install CyanogenMod without wiping as long as you're within the same major release (i.e. 7.1 -> 7.2 is okay, 7.1 -> 9.0 would require a wipe to boot properly). Worst case is that you bootloop, usually, so you can always try it and then go back into recovery and wipe if it doesn't work. It's never caused problems for me before and I put nightlies on my devices on a fairly regular basis (2-3 times per week, usually).
The CyanogenMod team has also noted this in the past on their blog and in other places. The 7.1 announcement, for example, stated:

Upgrading from any previous CM-7 release or nightly build should be
  smooth and no wipe should be required.

If this answer satisfies you, why don't you accept it? :D


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How to enable drag status bar from lock screen?
I have Hisense AD686G running on Android 4.0 Ice Cream Sandwich. I can't pull the status bar down in any type of lock screen (slide, pattern, PIN, etc).
I know almost all ICS phones out there have this feature, strangely my phone doesn't.
How do I enable the status bar dragging on the lock screen?

Depends on the phone/firmware. If the manufacturer locked it, you can't do anything, but downloading another lock screen from the play store may be viable for this.

did you use any pattern or pin or password lock on your mobile

@RossC My phone have very limited resources so I cant use third party apps. Isn't there anything else I can do?

@iDev no I use slide locking.

@Nur Try rebooting your phone, or if all else fails...the dreaded "battery pull".

I don't know if any setting is available for notification bar dragging, but the notification dragging bar is enabled/working only on screen lock made by slide. Other than this, it won't work like PIN, pattern, password, etc.
If you want working notification bar, go to Settings -> Security -> Screen Security -> Screen Lock -> change to slide.

I use slide lock option, but still I can drag status bar, do I need to modify some system files? If it is, can you point me a link of tutorial that tell me what to edit? Since I believe modifying system files is considered off-topic on this site.

@Nur Try rebooting your phone, or if all else fails...the dreaded "battery pull".


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Poor performance of HDR in Nexus 5
I am using Nexus 5, and the image taken with HDR is very poor quality. I have updated to 4.4.2, still no improvement. So to make sure I am doing it correctly, I installed another app "Best HDR" and compared images with that of Android and the first one is much better.
I will put the two images here (images are compressed for fast uploading, so they will be a little blurry than the real):

Taken with Android HDR / Taken with Best HDR (click images for larger variants)

Taken with a normal camera (click images for larger variants)

Taken with Android HDR / Taken with Best HDR (click images for larger variants)
Question: Why is it like this? Is the HDR of Android that bad or am I doing anything wrong?

AFAIR, Nexus 5 used Google Camera as the default camera.

More of a photography question than an Android question, I think. Remember that HDR is High Dynamic Range, essentially your camera takes 3 (or more) pictures at different exposures: One normal, one bight, one dark (EV -1,0,+1). It then combines all of these to create an image that represents what 'what your eyes see' by bringing out the dark parts of the photo with the light copy and dimming the bright parts with the dark copy (a simplified explanation).
With the images you have shown me, it seems as if you are shooting directly into a light source, and while this works if you want to shoot a silhouette, it's not the best option for HDR style photography unless you have control on how to edit the Highlights/Shadow -essentially Photoshop type post-processing. This is not very conducive to HDR imaging, and thusly will produce 'bad' (not desired) images. I would suggest taking a picture where the light source is behind the phone (not aimed at the lens) as a HDR comparison.
To explain for the difference between Stock Camera HDR and Best HDR Pro, my thoughts go to the HDR algorithm. I assume that both apps have a different way of processing HDR images, and from the looks of it, the Stock Camera is using an algorithm that avoids the use of noise while Best HDR Pro is pushing either ISO or brightness up to give a more HDR like look.
Like I stated before, take images with light coming in from different directions and try to take images with quite a bit of detail (flowers, landscapes, ect.) to get a good comparison. That should help you decide on the performance of the apps themselves.


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Deleting messages in WhatsApp
I had a lot of private and group conversations over a year through WhatsApp, but all of a sudden the space it takes seems to be on a high. I was able to delete private messages by long-pressing the person's file and deleting the entire conversation, but when I long-press the group chats, I didn't quite find an option to delete the conversation all at once.
Is there any way to delete private messages all at once rather than doing them individually?

The question is a bit unclear whether they just want to delete all messages from selected group chats only, or they really want to clear all messages entirely. The existing answer handles the latter.

Go to WhatsApp settings> Chat Settings> Delete All conversations


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Why is ART not available on Nexus 7 (2012) or Nexus 10 running Android 4.4?
I just updated my Nexus 7 to Android 4.4 KitKat and was looking forward to testing out ART, but that option isn't available. I got word that the Nexus 10 also lack this option, but I can't find any info as to why that is.
Anybody have anything to share? Of course, they would need an AOT compiler for that platform, but how big of a difference is there between Nexus 7 and Nexus 4? They are both ARMv7, although Nexus 4 is A5-based and Nexus 7 is A9-based (according to my research). Why would that make a difference?

(Disclaimer: Pure speculation) This may have something to do with the fact that the 2012 Nexus 7's CPU is a Tegra, and the Nexus 10's is an Exynos. Perhaps Nvidia and Samsung have something to do with it - but I have no idea if it would be a technical thing or a political thing.

That is however rather strange, since on custom ROM builds ART works well on Nexus 10.

I'm posting this from an LG Optimus 4X HD running Cyanogenmod 11 (Kitkat). I'm using ART with no problems and this phone has a Tegra chip.

I just submitted a bug report to Android issue tracker. Maybe we'll receive some feedback from developers: https://code.google.com/p/android/issues/detail?id=62375

I don't think the Android Open Source Project Bug Tracker is the appropriate place to submit such "feature request". It's something Google has to arrange and has nothing to do with AOSP (nor its bug tracker).

Could you suggest a better place for such request? It's not actually a feature request, but a potential bug report if ART was omitted by mistake

AFAIK there is no better place. Google doesn't have public bug trackers for their commercial products. Even if you would consider this as bug report, it would be a bug report for a commercial Google product, and not for AOSP.

I understand that this is a bug for a commercial distribution. But I think that this place is appropriate for such an issue as there is no better place and most of android AOSP developers work for Google.

Because I stumbled across it: The ideal place for such requests is likely the official Nexus Forum at Google's Product Forums.

It looks like the current OTA update to 4.4 is missing the runtime switcher for the 2012 version of the Nexus 7.

Thanks, but that I already know :) Was more curious to if someone had stumbled across an explanation to why that is.

It's a bit odd alright and typical of Google and the OEMs there's a dearth of information. Best guess is a gradual roll out due to issues with it. Many apps are not up to date for ART (whatsapp doesn't work under it at all for example). Kitkat is fragmenting already.... I really wonder why I expected something different this time. If I find out anything later from my buddies in Google I'll let you know.

Apparently ART is only available for Snapdragon-based devices. I can switch the runtime on N4, N5 and new N7 which are all based on Snapdragon but not on the first gen N7 (Tegra 3) and N10 (Exynos). It is plausible to make such restriction (because it can break the system) if the devs aren't tested it enough on devices other than Snapdragon.
And we all know that ART is still experimental and not production ready. Therefore, "fragmentation" doesn't apply here.

However, AOSP based roms do have that option and it seems to work for them. soo...

First of all, this is all going to depend on what you're operating on. If you're on a OTA update (stock ROM), it may or may not be included (which I can't tell you if it is or not, based on that I've never used a stock rom), but if it is included, it'd be under the developers options menu. Custom ROMs, like the one that I'm using, do include the option to switch to ART on the same device you're asking about (specifically, grouper, or the 2012 Nexus 7), but that's not to say all custom roms will include the feature. It all depends on what the developer of the ROM has included in it.
Google's OTA update might not have this feature included because of, at this time, it is still a work in progress. If it's not in the developer's options yet, be patient, wait a while for them to implement the use of ARM more universally, and then make the switch. If you don't know how to get to the developer's options menu, then maybe your knowledge base of android should be aged some before rushing into asking "why it's not included" when it very well could be.

From AOSP Issue Tracker #62375 which was posted by Max Romanovsky, it's working as intended due to space limitation in /system partition:
Post #19

I believe this is WAI (ed. Working As Intended) due to flash space limitations, but over to anwarg to confirm.

Post #87

As per #19, there were space limitations in the /system partition for Nexus 7 (2012) and Nexus 10. The AOSP builds have more room because they only include the AOSP apps. Also, including ART along sided Dalvik as a developer option in 4.4 required not stripping .dex files from system JAR and APK files, which added additional pressure on top of just adding the libart.so related files.

However, Nexus 7 (2012) and Nexus 10 can be upgraded to Android 5.x Lollipop which runs on ART exclusively:

Factory images for Nexus 7 (2012)
Factory images for Nexus 10


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Cannot unpair YouTube app on my smartphone from LGTV (SmartTV)
I cannot unpair my Android smartphone YouTube app from my LGTV.
On LGTV: I went on YouTube app and log-off my account. I also disconnected all mobile devices from it, what should (?) suffice in case my cell phone is stolen or something else happens, but...
On Phone: I cleared all app data and cache for YouTube app. But still, after starting the YouTube app, my LGTV is still registered and I can make YouTube videos play on LGTV.
On YouTube account: I removed the LGTV from YouTube configuration, but still any account on the phone can make videos play on the LGTV.
There is something that is being left on my smartphone that still allows it to control the LGTV.
The next step (that I am holding) is: completely reset my phone and research some way to completely reset my LGTV (if it makes any difference).

I don't have a TV paired with my YouTube account, so this is really just another setting to look at.

Go to your YouTube account: https://www.youtube.com/account
Click on the Connected TVs option at the bottom of the left hand menu.
If available, disconnect the TV from here.

I went there, I had already removed the TV; interestingly is that I can make the youtube app play on LGTV from any account I have registered on the phone, even account that has not linked to the LGTV before! :(

Maybe you could perform a factory reset on the TV? I was looking online but without knowing what TV you have, I couldn't find a generic enough tutorial.

that may be a workaround so I could take care of it from the LGTV what is the right way to do it; anyway I may be forced to to clean the phone from this abusive/excessive data storage that I cannot easly remove; if I knew where such information is stored I would one step do clean it up :)


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Access sensors and camera of Android device from shell
I have logged in to my Android phone through SSH [installed SSH client in Android and through Putty from Windows]. Now I can access all the directories like root, dev, etc, of the phone.
Can someone tell me what's the native method to access the devices and sensors of the phone? I mean, how can I control say, the camera, just from this Linux shell terminal of the phone?

Community bump prevention: this question was closed because the question seems to have been abandoned (OP hasn't visited the network for more than 5 years, and no answers have score above 0). If anyone can evaluate the existing answers, feel free to vote accordingly and reopen the question (or mod-flag the question requesting for reopening). For anyone else having the same issue, please post a new question and refer to this question as additional context.

I found out that the simplest method is to use IP Webcam app. It has HTTP API so you can do all kinds of things with it.
To be fair, I'd also really like to know if there's a way with just shell.

I haven't tried this, but since android isn't so different than the underlying Linux system, you might be able to do the same thing as described here. The device file name might be different though and you might need to be rooted.


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Samsung stock email application won't show "sent" email on phone (using Gmail account)
I use a Samsung Galaxy S III and I use the stock Samsung email application and widget (which also comes stock on the Samsung Galaxy Tab 2).
I have four Gmail accounts linked to my phone and I have all four Gmail accounts configured for use with my stock Samsung email app (this is different than the Gmail app available on the Play Store).
IMAP is enabled in my Google accounts and all settings match those recommended by Google.
However, when I send an email from my phone, the message doesn't appear in the sent folder, on my phone.  Oddly enough, the message does appear in the sent folder on my PC when viewing Gmail in Chrome.
I believe that this error is related to Google's 2-step verification security settings.  I remember having this problem about six months ago and that was about the last time I had 2-step security active.  I don't remember how I fixed the problem, but it hasn't been an issue for a while.  But since that was about the same time I tried (and then gave up on) 2-step verification, I'm guessing that this is the issue.
I recently enabled 2-step verification, then I had a problem with my email, then I turned off 2-step verification, and then the problem went away.
I am well familiar with application-specific passwords and I have set them up (properly, to the best of my knowledge).  I also have Google's Authenticator app, and have used that when required.
I believe there is a bug in Samsung's email app that prevents outgoing mail from being saved in the sent folder when 2-step verification is active.
However, if anyone knows for sure what causes this, and whether or not there is a fix for it, I would greatly appreciate any help.

I bought an Android phone a few days ago... and it has the same problem. I don't know what causes it; but if it's a bug, it's amazing that by 2016 it still hasn't been fixed.


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Location History Accuracy?
Ok, I have a big problem! My fiance says he was at lunch while google location history shows that for over an hour he was in the hotel next door to the restaurant. He has a Galaxy 3.
The dots at the bottom of the screen are from the restaurant and the dots up at the top are the hotel. None of the blue circles from the 2 locations run into one another either.
How likely is it that this is inaccurate?

Uhm... I don't really know how to approach this question. One thing to note: I think it's unlikely that a phone actually pinged GPS Satellites for detailed location data this many times in an hour. Someone correct me if I'm wrong.

Very likely. I very often see in my location history that my train in Maryland warped to southern Virginia and back in a ten-minute span. It all has to do with whether GPS is working (it requires the device to "see" the sky) or if it's just course location based on which cell tower is being used. I'll wager there's a cell antenna on top of the hotel.

I agree with @Al - if there's a cellular antenna on top of the hotel, or inside it (Something not unheard of - provide better reception for customers), then Location Services may be locking onto its location to update its location data. This sort of reaffirms my belief that his his phone isn't likely to get a GPS lock this frequently - it was most likely using cell towers to calculate the position.

Oh, those data are quite accurate. Except when they are not: Maps location out by 12,742km - the other side of the world / Google Maps Location History is showing an incorrect location (does this problem sound familiar?) Besides: A lot of trust if you need to check his location history for where he was.

Ah! Looking at the link @Izzy so graciously provided, I'm revising my previous assumption - it was probably locked onto the Hotel's wifi. Even if you're not connected to the wifi access point, if it's "visible" to the phone, it can be used to calculate a location. It probably thought it was at the hotel because it could see the hotel wifi.

As mentioned above his location is probably being based off a WiFi signal, and occasionally a network one. Your location even when connected to WiFi isn't accurate to more than ~15m in any tests I've done when I was developing an app that used it, so the chances of it accurately following him around a building seem slim to me. Also you seem to be ignoring the numerous other lines coming away from the building for some reason?
As an aside, you're planning to marry the guy, if you don't trust him enough to stop creeping on his location when he goes out then best to break things off now.

But wouldnt it connect to the wifi at the restaurant before the hotel's? and he's now my ex-fiance... just not used to saying that... and this pic is showing all the "hidden" points.

You don't have to be connected to the Wifi for it to put you as there, your phone just has to be able to 'see' it. Or as you suspect he could have been at the hotel. Without more information/data being able to investigate it's very hard to say.

Izzy, in his comment, linked this previous question which explains how Location data is gathered. I recommend reading it for a better understanding of the technology. (It also seems to be contextually applicable)
In this case, the phone was most likely assuming that it was inside the hotel because it could see the hotel's Wifi access point.

even if the restaurant has wifi? what concerned me was the fact that once the dots moved to the hotel, they stayed there, they didnt bounce around or anything. they started at the front, moved toward the interior of the building, stayed there and then left... like it was following right behind him. these locations were accumulated over 2 hours. the last hour was all up top at the hotel. and what qualifies a location as "stationary"?

@user44694 - Seriously, I think you're reading too much into this. It's not like Google has every single wifi hotspot in the world mapped to a location. At this point, part of me thinks you're playing a practical joke on the community here. Android's Location Services are known to be weird. If you don't trust your fiancee, then bring it up with him. He has just as much right to be walking around parking lots and hotels as you have to ask strangers if he's telling the truth or not, and hide your concerns from him. (You both have those rights, but it's best not to exercise them either way)


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Transferring files applications via USB on Mac
I have Nexus 5 and I'm using the Android File Transfer as explained on Google's official support: Transfer files between your computer and Android device.
However, after either copying zip archives or creating new folders in the file transfer window with my Nexus 5 connected via USB, I do not see the changes reflected on the device.
What am I missing?

Where in the storage are you copying files to, and how are you looking for them on the Nexus 5?

Which file manager are you using on the Nexus 5?

Assume you are using the android File transfer program from http://www.android.com/filetransfer as that is the best way to transfer files on OSX.
If you just drag files into that directory it opens by default, the files might not show. On the "Android File Transfer" App choose the "Download" directory which is the best place to store a file, then drag files into that directory. This directory is accessible by all programs that have access to the internal storage.

Better solution is Handshake
can use both WIFI or USB.

Whilst this may theoretically answer the question, it would be preferable to include the essential parts of the answer here, and provide the link for reference.


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android.process.acore force-closing due to contacts list crashing
I've installed Android 4.1.2 on the Samsung Galaxy S Advance. I cope with a problem that more Android users have to deal with. The well-known android.process.acore force-closing (FC) or something similar. The constantly appearing FC notifications would be caused by your crashing contact list. However, I cannot find a solution for this anywhere while many users have this problem. It is really annoying when you have to open WhatsApp 3 times because the whole system freezes.
I've tried the options they give in force-close tag-wiki,
but rebooting and resetting obviously wouldn't help, and deleting contacts isn't the solution.
When I really can't use those FCs at the moment, I just temporarily freeze my contact list, but it is such a hassle to do every time. I also tried to avoid the FC, but logcat is turned off and it doesn't help.
Isn't there a way to hide those notifications?

You can find some "first-aid" on our force-close tag-wiki. Its most frequented questions might also prove helpful. Having checked those, please come back, [edit] your question, and add what you've tried and where you're stuck – or answer your own question if you were able to solve the issue. Welcome to the Android Enthusiasts, by the way :)

Do you have your contacts backed up?
Try uninstalling Facebook if that is installed. If this does not fix your problem then try the following.
Settings>Applications>System Applications>Contacts Sync Adapter and press Clear Data, this error usually goes away. If this doesn't work, try clearing the data on Settings>Applications>System Applications>Contacts or Settings>Applications>System Applications>Contacts Storage.

well thanks for the answer, but i can't follow the path you suggest.When in settings>Applications i can only choose Downloaded,SD,and ALL. I chose All which includes system apps, but i can't find something similar with Contacts, Sync adapter or Contacts Storage. I can find Contacts storag in titanium backu, but this doesn't give the option to clear contacts sync adapter.


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Customizing Google Play Newsstand feed
On Google Play Newsstand, I can select feeds for "My news" section, and when I select "Read now", I get a list of news from my selected feeds, and some news not from my selected feeds.
Is there any way I can customize the "Read now" feed and block publications or topics, etc? Or just get news from my selected feeds in the "Read now" section?

Even if I try to remove all the built-in subscriptions and just have my feeds, this app still bombards me with uninteresting junk in its "Read now" view. Anyone have a guide to getting it to show nothing but rss feeds nicely mixed together (sorted by time)? It would be a very pretty feed reader if not for all that news spam.

Flipboard does it but I much prefer the newsstand app

I’m voting to close this question because Google Play Newsstand has been discontinued since 2018 and replaced with Google News.

I am just now configuring My News on my tablet. Each news source tile has a setting menu on the far right next to its name (3 vertical dots). Pull that down by clicking, and select "Remove" from the menu, if you do not wish it any longer. Mine came with 12 pre-configured tiles, which I turned off way.
It is easy to add them back from the "Featured" list if you decide later to return to that news source.
UPDATE:I'm not seeing any direct removal of stories of the removed news sources when I first return to "Read Now", but I believe I must click through to expire the stories already presented, and then refresh to have the content cleared.
UPDATE2: Well, that's annoying. There could still be a number of items in the queue from the first opening of the app with pre-selected news sources. I may have to click through them all to see when my preferences will be adopted.

Thanks but my read now section shows content outside of my selected items in my news.  So Im looking to remove added items to my news section if you have for that, thanks

You can only remove the sources that you've added manually (via the My News tab). It seems Newsstand is more of a discovery app, so it keeps putting in new stories from new locations based on your reading habits. I've been using it for a few months and it certainly has begun to know me a lot better, but then, I like receiving recommendations and discovering stuff.
One thing I can't seem to remove is the purple and orange background stories, which, for me, seem to be local, current affairs and sports topics, which I'm not interested in. This is because you can add a new source by clicking the '+' at the end of the story, but there's no '-' button to specifically remove a story that you don't wish to receive. The only way is to ignore stories/sources you don't want to read and hope that they'll go away.

Yeah thanks.  I felt that and ive specifically not read a specific news source that I want to go away.  But it wont.  The headlines are relevant to the stuff I do read and thats why i think it keeps appearing.   the journalism of the site is shocking and there can still be discovery with the ability to remove.  Also an option to show all news from your selected sources rather than individual feeds would also be nice...

Maybe your best bet is to + the sources you do want to read from and only read the My News section. This will mean that you wont discover new sources, but at least you can keep the unwanted ones out.

But then I have to read each source individually.  I like the read now where it shows all sources together.  I want the best of both read now and my news!

Oh, I forgot about that. I guess that's the reason I don't spend much time in the My News section! BTW, you can go into my news and remove the topics (at the end) in which you're not interested. I just removed a few. But not specific sources within topics.

Remove topics? From read now or my news?  I didnt add any topics just feeds, and i dont see how to remove topics?

From My News, which directly affects the Read Now sources and discovery.


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Lock screen wallpaper location
The Samsung Galaxy S4 comes with a TripAdvisor lock screen wallpaper that rotates images every X hours of places around the world. Every now and then, it has really cool ones that I would potentially like to save to use as my lock screen permanently, but I can't figure out where in the filesystem they are stored.
I have found a couple of posts saying it is located in /data/data/com.android.settings/ or something like that, but my /data folder is empty.
TL;DR: Where does Android save the current lock screen image?

If your /data folder were empty, you'd have no apps installed, and just done a factory-reset from recovery but never booted the device afterwards :) Thing is: you cannot browse /data without having root privileges. So you'd need to root your device, and use a file browser supporting "root mode".

That depends on your Android version, but only changes a little. Wherever it is, you need root-access to retrieve it.
For Android 6 and under:
/data/system/users/0/lock_wallpaper

While primary (mainscreen) wallpaper is available at /data/system/users/0/wallpaper.
For Android 7+, the file name has changed to wallpaper_lock and is still available at the same place. You may want to fetch wallpaper_lock_orig instead, however.

On Lenovo S1La40 (Vibe S1 Lite, Android 5.1, rooted) under the folder /data/system/users/0, I found the following files:
root@S1La40:/data/system/users/0 # ls -la
-rw-rw---- system   system     253952 2017-05-16 20:06 accounts.db
-rw------- system   system      37448 2017-05-16 20:06 accounts.db-journal
-rw------- system   system        715 2017-05-16 20:05 appwidgets.xml
-rwx------ system   system     356866 2017-05-16 20:05 lock_wallpaper
-rw-rw---- system   system      56663 2017-05-16 20:19 package-restrictions.xml
-rwx------ system   system     209008 2017-05-16 20:06 wallpaper
-rw------- system   system         99 2017-05-16 20:06 wallpaper_info.xml

where lock_wallpaper is the lock screen wallpaper, a jpeg without an extension.
I have my new wallpaper under the name majestic.jpg, so I can do the following:
adb push majestic.jpg /storage/emulated/0/lock_wallpaper
adb shell
su
cp /storage/emulated/0/lock_wallpaper /data/system/users/0/lock_wallpaper

My Samsung Galaxy Note 2 saved it under /data/data/com.sec.android.gallery3d/files as lockscreen_wallpaper.jpg
The uncropped file was in the same folder.

It's in /data/data/com.sec.android.app.themechooser/files.

In Samsung Galaxy S4 it's at the location /data/data/com.sec.android.gallery3d/files/.

Android\data\com.sec.android.wallpapercropper2\files
This is where I found Lock Screen Wallpaper on Samsung Galaxy S6 Edge.

Make sure you have USB debugging turned on and then it should be in the data folder under com.sec.android.something