Samsung account. find id; reset password; forgot your password? please enter your information below. information for reset password. id (email or phone number) id (email) the value entered for id is invalid. please enter id. there's no matching information. enter the numbers you hear. please enter the security code. Hard reset your samsung galaxy m21 with recovery mode. be sure that your device has at least %50 charge life. power off your device and wait a few seconds. press and hold volume up + power buttons together until recovery mode screen appears. (these button combinations can change on different. Samsung account. find id; reset password; forgot your password? please enter your information below. information for reset password. id (email or phone number) id (email) the value entered for id is invalid. please enter id. there's no matching information. enter the numbers you hear. please enter the security code. How to bypass screen lock in samsung galaxy m21? how to restor...