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Even in some rare cases, the re-install step also doesn't work.Android usually restores all settings after you re-install and log into the app. Finally, if you can't fix it with anything, you may need to uninstall the app and reinstall it.After that put it to charge, and press the power button. If none of the above is working, you can wait till your phone battery drains and it turns off automatically.Now you can try opening the app, it may work fine. Then, release the buttons and hold down the "Power" button until the screen turns on.
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Press and hold down the "Home" and "Power" buttons at the same time for up to 10 seconds.
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