I borrowed a phone Galaxy s23 to my friend and her **bleep** boyfriend added his Google account to her phone so he could track her location. Now she can't turn off the tracking. I own the phone and can prove it and she doesn't want you factory reset because she'll lose too much data... Is there any way to remove an unauthorized Google account?
The lesson here for you is never lend your phone to anyone. The lesson here for your friend is to never let anyone have access to their phone and to get rid of the boyfriend - it's not going to end well. Remove your friend's personal data to a flash drive and then factory reset the phone. Make sure the phone is logged out of all unauthorized accounts (including hers), and reset the phone. If the phone is reset, it needs to be reset up with the original Samsung and Google account, or it's a brick. If the phone was set up with your friend's Google account, then she will have to log the unauthorized accounts out from her Google account. Or, you can just have her pay you for the phone and let her do with it what she wants.
Are you a party to this drama? If not, you can't possibly know anything about it. If you are, this is not the place to air your laundry. Also if you are, take the tracking off the device - cyberstalking is a crime.
