Last Updated on December 23, 2022 by Mathew Diekhake

Installing custom ROMs is common but often it’s done incorrectly which causes soft-bricked smartphones. You need to unlock the bootloader and install a custom recovery image before installing a custom ROM. Once you have done that, you should reboot to Recovery Mode and factory reset the smartphone, and format its data.

If you are hard resetting because you want to wipe all data and reset factory settings for another reason, you can often do that from the Settings app instead.

This tutorial demonstrates how to hard reset the Oppo F21 Pro CPH2363 smartphone.

How to Hard Reset Oppo F21 Pro CPH2363

You can hard reset the Oppo F21 Pro CPH2363 smartphone from Recovery Mode and the Settings app. We recommend using the Settings app unless you cannot use the software or if you are installing a custom ROM. So, here is how to hard reset via the Settings app first:

1. With the Oppo F21 Pro turned on, tap Settings > Additional settings.

2. Tap Reset > Erase all data (factory reset).

3. Tap Erase all data.

4. Tap Erase data twice.

Once the hard reset is complete, the Android operating system will restart and you can set up the device and sign in to your Google account. if you have forgotten your Google account password, visit Google.com on a desktop computer and reset it from the sign-in page.

Those installing a custom ROM can hard reset and format the data from Recovery Mode. This method is also useful for anyone who could not get access to the Settings app. Here is how:

1. With the Oppo F21 Pro turned off, press and hold the Power + Volume Down buttons.

2. Let go when you see ColorOS Recovery.

3. Select your language.

4. Select Wipe data.

5. Select Format data > Format.

6. Select OK.

7. Select Reboot.

You will need to sign in to your Google account when the Android operating system restarts. If you have forgotten the password, you can visit Google.com on any desktop computer and reset it from the sign-in page.

In conclusion, that is how to hard reset the Oppo F21 Pro CPH2363 smartphone.