Open the app and tap "Start applying." This sends your Serial Number to Oppo's servers.
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. Open the app and tap "Start applying
Has anyone found a workaround for this 'exclusive' lock? Do I need a specific unlock token or is there a way to force it via ADB?" for your specific Oppo model? Has anyone found a workaround for this 'exclusive' lock
Ensure you are using the official Oppo/Realme Deep Testing APK for your specific model and have received "Approved" status before attempting to enter Fastboot for unlocking. Realme C3 problem after unlock bootloader | Early Bird Club Realme C3 problem after unlock bootloader | Early
The "serial is not match" error can often be resolved by troubleshooting your USB connection and ensuring you're following the correct process for your specific device. Always refer to official sources or trusted forums (like XDA Developers) for the most reliable and safe methods to unlock your device's bootloader.