: On Android, go to Settings > About Phone and tap "Build Number" 7 times to enable Developer Options, then toggle on USB Debugging .
For tech-savvy users, the closest thing to a completely free MDM bypass involves using terminal scripts during the device setup phase. mdm unlock tool free
Contact the original owner or IT department. Provide proof of purchase or old employee ID. They can release the serial number remotely in 30 seconds. : On Android, go to Settings > About
The Ultimate Guide to Free MDM Unlock Tools: Risks, Realities, and Better Alternatives : On Android