Are you in difficulty with your Samsung G531F because of the FRP because you lost your Google account certifications after the reset?
With no sim or lock, this video will help you erasing FRP on your device:
Assuming your telephone shows a FRP lock cautioning, realize that you will not have the option to utilize it until you approve your GMAIL ID secret key. The method above is planned so that it works on the help that expects you to give login accreditations, permitting you to associate once again into your telephone without giving a secret word.
Android incorporates this assurance include assuming your phone gets derailed or taken and somebody might want to utilize it while you have as of now introduced security to your lock show (Pattern-Pin-Code-Fingerprint-Face ID).
So subsequent to making the hard reset, you will need to sign into the Gmail account you have recently introduced, and that implies you will not get your Samsung phone with no Google accounts.
