Secret Codes SAMSUNG Galaxy M21 – Service Menu / Hardware Test

Learn more info about SAMSUNG Galaxy M21: Discover unknown functions in your SAMSUNG Galaxy M2 device. In this tutorial, we will show you how to use secret codes, thanks to which you can rediscover your phone. By using simple tricks you will be able to access hidden options such as the service menu, hardware testing modes, battery status, USB settings, IMEI number and more. How to use secret codes on SAMSUNG Galaxy M21? How to get access to hidden mode in SAMSUNG Galaxy M21? How to open secret menu on SAMSUNG Galaxy M21? Which secret codes works for SAMSUNG Galaxy M21? How to use Secret Codes on SAMSUNG Galaxy M21? How to check the configuration on SAMSUNG Galaxy M21? How to check IMEI on SAMSUNG Galaxy M21? How to test SAMSUNG Galaxy M21? How to open hidden menu in SAMSUNG Galaxy M21? Follow us on Instagram ► Like us on Facebook ►