HTC X+ - Manual (Page 96)

Performing a factory reset using hardware buttons
If you can’t turn HTC One X+ on or access settings, you can still perform a factory
reset by using the hardware buttons on HTC One X+.
1. Press and hold the VOLUME DOWN button, and then press and hold the
POWER button.
2. Wait for the screen with the three Android images to appear, and then release
the POWER and VOLUME DOWN buttons.
3. Press VOLUME DOWN to select FACTORY RESET, and then press the POWER
button.
96 Sync, backup, and reset