HTC Desire 21 pro 5G‎

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What can I do if my phone keeps rebooting or won't boot all the way to the Home screen?

When the phone is unable to fully boot to the Home screen or keeps rebooting, it may be having issues launching the operating system. In these cases, the screen may show a warning icon, such as a red triangle with an exclamation mark , or it may show the HTC or carrier splash screen but not proceed to the Home screen before rebooting. Press and hold the POWER button to force the phone to restart the boot process.

If the phone is still unable to boot to the Home screen, you may need to reset the phone to factory settings. Since the phone will not boot properly, the factory reset can only be performed using special commands outside of the device settings. See How do I perform a factory reset using hardware buttons? for details.

How do I perform a factory reset using hardware buttons?

Before you do a factory reset, please be aware of the following:
  • A factory reset will erase all data, media, and files from the phone storage. You'll lose them and won't be able to restore them if you didn't sync or back them up before. Make sure you've backed up all important information and files before you proceed.
  • Make sure the phone is charged to at least 35% before performing the reset, or is connected to an HTC charger and is actively charging.
  • Make sure you know your Google® Account name and password. You'll need them to unlock your phone after the factory reset.

    Device Protection may be enabled, which means that after the factory reset, you'll need to sign in using the same Google® Account that was logged into your phone. If you forgot your Google® Account password, use your computer web browser and go to to reset your password first.

To perform a factory reset:

  1. Turn the power off.
  2. Press and hold the VOLUME UP button. Then connect your phone to a power outlet with the USB cable and power adapter.
  3. Continue holding the VOLUME UP button while the phone powers on. Release the button when the Android Recovery screen appears.
  4. Use the VOLUME buttons to scroll to the Wipe data/factory reset option, and then press the POWER button.
  5. If prompted to confirm, use the VOLUME DOWN button to select Factory data reset and then press the POWER button.
  6. If the phone doesn't automatically restart after the factory reset, press POWER again to reboot.
Note: Make sure you do not select the other options on the screen. Doing so may void your warranty or brick your phone.
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