what does it mean when your nokia lumia 635 flashes on and off

[WPCentral Question]

when i put my bitterer in the phone it just shows nokia and turns right back off i never had a problem with it until yesterday. so i thought it was just died so i charged it all night and nothing happened it just stayed the sam

 

[Pacus1x]

Try a soft reset: Hold the volume down and power button for about 10 seconds, hold it until it vibrate.

If everything stays the same, then the phone may need a hard reset... here you can find how to perform a hard reset, look for To reset an unresponsive phone part.

Another option is to reset your phone via PC with the Windows Phone recovery tool software.