How to get rid of supervision
The serial number may be claimed - correctly or incorrectly, you have two options.
- If you can get to settings see if you can determine the exact address of the management server (get screenshots) and then try to remove the profiles.
- If that doesn’t work, you have to handle this administratively with the School and/or Apple. Collect all your receipts for purchase so you can help clarify how you came into possession of a device that’s marked as school owned.