I went for a walk yesterday, and was listening to music the whole time, and when I got home I couldn't get the screen to turn on. Music was still playing but the screen was completely black and unlit the whole time. Anyone has has this issue ? Thanks
Try holding the power and volume down buttons together and see if the screen will come on when it reboots to the boot loader.
Exactly what Bruce said. The device would reset after about 10 seconds, and the screen should come on almost right after that. Otherwise, you've got a big software bug or a serious hardware problem, which might not be easy to fix.