NXT Bluetooth "Failed!" when turning on When I attempt to turn on my bluetooth, the response on the display after about 5 seconds is "Failed!"  Then I'm sent back to the main menu.

I've reset the unit and updated to latest firmware (1.31) to no avail.

I'm curious about the "doomsday" button on the inside of the battery compartment--you have to remove a battery to push it (thus the unit is not powered up if you push it by accident), so it obviously could cause significant issues if it is pressed.  I am an electronics tech--I know what to do to power it up and press the button, but there is no reference to what it is there for, so the little voice of reason says, "don't."

Thanks!

--Lamafozzy
The hidden button under the NXT battery seems to be a reset button, which has to be pressed for 7 seconds to have any effects. I assume it resets the brick in its factory condition, but I didn't find any specific documentation from LEGO on it.

However, there was an issue a few years back which caused the brick to freeze and click permanently (which was called the "NXT Click of Death"); and the solution included a hard reset using that button. (It's just one out of many pages on the subject, by the way)

Will this solve your Bluetooth issue? I don't know. If there's a problem with your firmware, then it's possible, since you'll need to reflash one anyway (since it will be reset to factory settings). Maybe trying alternate firmwares might shed some light on your brick's condition, too.

If that doesn't solve it, I would advise to contact the mindstorms customer support - worst case scenario, they establish your NXT brick is indeed defective, and they'll probably provide you a replacement.