In the Google ssettings you have the option "Add other account".
But the best and most simple one is to "reset to factory defaults".
In that case all accounts will be removed and what has additionally been installed by that user.
But the best and most simple one is to "reset to factory defaults".
In that case all accounts will be removed and what has additionally been installed by that user.
(a.k.a. surfer63 on XDA)