Do not pay for "unlock services." Almost all are scams. The "Oppo exclusive" verification is cryptographic. If it were bypassable by a $15 Telegram bot, Oppo’s security team would have patched it within days.
If you find "bypass" tools claiming to fix this error without the Deep Testing app, proceed with extreme caution. Do not pay for "unlock services
OPPO users attempting to unlock their device’s bootloader often encounter a frustrating and cryptic error message: If you find "bypass" tools claiming to fix
For "Exclusive" or heavily locked models, standard methods often fail. Professional technicians use specialized software to bypass the security check in BROM mode. MTK Client MTK Client The specific phrase "The serial is
The specific phrase "The serial is not match" is the smoking gun. It implies a discrepancy between the data the device holds internally and the data expected by the verification authority (the unlock tool or server).
Alternatively, hold until you see the Oppo logo to attempt entering Recovery Mode , where you can select "Reboot" or "Power Off" .
Use fastboot oem get_identifier_token to see what serial your bootloader thinks you have. If it shows 00000000 or a scrambled value, your persist partition is corrupted. The only fix is an official service center reflash.