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Sync, backup, and reset
A factory reset may not permanently erase all data from your phone, including personal
information.
Performing a factory reset from settings
1. Go to Settings, and then tap Backup & reset.
2. Tap Reset phone.
To also delete media and other data from your storage card, select Erase SD card.
3. Tap OK.
Performing a factory reset using hardware buttons
If you can't turn HTC One on or access settings, you can still perform a factory reset by using the
hardware buttons on HTC One.
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.