How to remove previous apple id in iphone
Previous apple id of previous owner is still popping up how do i remove
iPhone 12 Pro, iOS 14
Question marked as
The previous owner should have done all this -->
What to do before selling or giving away your iPhone, iPad, or iPod touch [or if you received one that had not been erased] - "Use these steps to remove your personal information from a device, even if you don't have it anymore." Click here --> https://support.apple.com/HT201351
You will find that in the end in order to remove a previous owner's Apple ID it will require the sign-in information for that Apple ID.