: The status will read "Reviewing". This process typically takes anywhere from 1 to 7 days . Do not flash anything or run ADB tools during this window.
If your phone is stuck displaying this error and keeps rebooting:
Download a trusted third-party MTK Bootloader Unlock tool (such as MTK Client or specialized service software). Install the necessary MediaTek USB VCOM drivers on your PC. Power off your phone completely. the serial is not match fastboot unlock verify fail oppo
: A physically short-circuited or jammed Volume Down button can force the phone into an invalid hardware state, corrupting boot verification.
Download the correct specifically built for your exact Oppo/Realme model. : The status will read "Reviewing"
Modern OPPO devices utilize strict bootloader security, especially those built on chipsets and newer Android versions (like Android 13 and 14). The error stems from three main factors:
Fix "The Serial is Not Match Fastboot Unlock Verify Fail" on OPPO/Realme If your phone is stuck displaying this error
The safest approach is to request official bootloader unlocking permissions directly from the manufacturer.
Depending on your device model and technical comfort, you can try the following:
Locate and download the correct factory explicitly matching your specific OPPO model number. Load the firmware scatter data into the tool.
He’d been up since midnight, following a forum guide titled "Unlock Bootloader in 3 Easy Steps!" Three hours later, he was stuck on step two, and his phone was a brick.