HTC Wildfire S U.S. Cellular User Manual page 170

170 Reset
Performing a factory reset using hardware buttons
If you can't turn HTC Wildfire S on or access settings, you can still perform a factory
reset by using the hardware buttons on HTC Wildfire S.
1. Remove the battery, wait for a few seconds, then reinsert the battery.
2. Press and hold the VOLUME DOWN button, and then briefly press the POWER
button.
3. Wait for the screen with the three Android images to appear, and then release
the VOLUME DOWN button.
4. Press VOLUME DOWN to select FACTORY RESET, and then press the POWER
button.