What if I don’t know the Apple ID that’s connected to my phone?
My phone was log in using a different Apple ID which I have no idea who’s Apple ID and now my phone is lock and I can’t erase it or restart my phone cause I can’t remember my password
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If you forgot the Apple ID (iCloud) password, enter the Apple (iCloud) ID, and click Forgot Password. See if you can get a Rescue or Notification email option if necessary. Link to contact Apple Support at the end of the 2nd article.
Since the phone is logged into a different Apple ID, if you are the original owner, contact Apple. Apple can remove the ID if provided the required paperwork to include the original purchase receipt with the serial number on it.
Request additional support for unlocking your device. -
You used to be able to take the device, the original purchase receipt with the serial number, and a photo ID to the nearest Apple Store (if it has reopened) and have them remove the ID. This may have changed, so call the store before going to make sure they can help.
Genius Bar Reservation and Apple Support Options - Apple. -