How do I perform a factory reset on my Android device? (TQ00269)

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There is a method how you can do this:

1. Exit the app.
2. Go to the Android settings.
Go to 'Backup & Reset'.
4. Now select 'Factory data reset'.
5. Please check 'delete SD card'.
6. Confirm with 'Reset device'.

The device will start automatically after resetting.