query: My iPhone 4 has just stopped charging -- what could be wrong with it?
positive_passages.docid: 28682
positive_passages.text: iPhone is dead, will not charge
negative_passages.docid: 137334
negative_passages.text: Using iPhone while charging and when charged
negative_passages.docid: 16808
negative_passages.text: Is my phone liable to explode if I charge it with a charger that came with a different phone?
negative_passages.docid: 60710
negative_passages.text: Is it safe to use the 12W iPad 4th gen power adapter for earlier iPads and iPhones?
negative_passages.docid: 26507
negative_passages.text: Can a device be damaged by water even if there is no power supplied?
negative_passages.docid: 119466
negative_passages.text: What does it mean when iMessage suddenly stops saying "Delivered"?
negative_passages.docid: 78595
negative_passages.text: iPhone 4S speaker not working for apps but works for ringer
negative_passages.docid: 15750
negative_passages.text: App crashes, dock icon remains, can't reboot, yet no process in ps aux to kill
negative_passages.docid: 11252
negative_passages.text: How do I restore my iPhone from an iCloud backup?
negative_passages.docid: 110841
negative_passages.text: AirPlay turned off and can't be turned on
negative_passages.docid: 76497
negative_passages.text: iPhone 5S suddenly turns off at 30-40% of battery life
negative_passages.docid: 36515
negative_passages.text: How can a faulty USB charger kill you?
negative_passages.docid: 66686
negative_passages.text: Why does my phone have erroneous input when connected to a non-OEM power source?
negative_passages.docid: 75636
negative_passages.text: I've found an icloud locked iPhone, how can I return it to the owner?
negative_passages.docid: 58295
negative_passages.text: iPhone not charging in Windows. Driver without iTunes?
negative_passages.docid: 115087
negative_passages.text: Bosch battery stopped charging
negative_passages.docid: 138223
negative_passages.text: iPhone asks 'Trust This Computer' again