: Some users on the OnePlus Community reported that simply holding Power + Volume Up for a long duration forced a successful reboot that cleared the temporary mismatch.
If you find "bypass" tools claiming to fix this error without the Deep Testing app, proceed with extreme caution. : Some users on the OnePlus Community reported
The error is not a bug—it is OPPO’s secure lock preventing unauthorized bootloader access. It occurs because your device expects a cryptographic token tied to its unique serial number, and none (or a wrong one) was provided. : Some users on the OnePlus Community reported
"the serial is not match fastboot unlock verify fail oppo exclusive" : Some users on the OnePlus Community reported