WARNING! When you factory reset your device, all your personal data located on the phone’s internal memory will be deleted, including downloaded content, ringtones, contacts, media files, apps etc. Additionally, settings will be restored to factory values, however data located on the SIM and SD Cards will not be deleted.

NOTE: Before you factory reset your device, you can visit this thread for a guide on how to back up data, and this thread for a guide on restoring data.

Factory Reset via Settings:

  1. Open “Settings
  2. Scroll to “Personal
  3. Tap “Backup & reset
  4. Turn “Automatic Restore” and “Back up my data” On or Off
  5. Tap “Reset phone
  6. In case your device is protected by a PIN / password / lock screen, enter it to proceed
  7. Optionally, select whether to “Erase SD Card” as well (WARNING: by enabling this option, the reset process will also delete all data on the SD card)
  8. When ready, tap “OK

Factory Reset via Recovery:

NOTE: If your phone crashes, freezes, or otherwise prevents you from resetting it via Settings, alternatively you can try resetting the phone from the Recovery menu, which can be accessed by performing a combination of button presses:

  1. Ensure the phone is powered OFF
  2. Press and hold “Power” and “Volume down” at the same time
  3. After the phone vibrates once, release “Power
  4. At the “hTC download menu” release “volume down
  5. Navigate the menu by pressing “volume down” repeatedly and highlight “Reboot to bootloader
  6. Press “Power” to select the highlighted option
  7. Press “Volume down” to highlight “Boot to Recovery mode
  8. Press “Power” to confirm
  9. After you gain access to the “No Command” screen, press and hold “Power” and “Volume down
  10. Once in Android Recovery, release “Power
  11. From Recovery, press “Volume down” repeatedly to navigate the menu and highlight “Wipe data / factory data reset
  12. Press “Power” to select the highlighted option
  13. Highlight “Yes – delete all user data” using the volume buttons and press “Power
  14. Once the phone completes the reset, highlight “Reboot system now” and press “Power

Check for OS Updates:

NOTE: Once you factory reset your device, it’s recommended to keep the OS updated at all times. To check if new updates are available:

  1. Open the apps drawer and launch “Settings
  2. Scroll to and tap “About
  3. Tap “Software information
  4. Verify if a new update is available. If applicable, follow the on-screen prompts to download and apply the available update. (NOTE: the update process will require at least one reboot)

See More: HTC U11: Factory Reset via Settings/Recovery; Check for Software Updates