The Serial Is Not Match Fastboot Unlock Verify Fail Oppo Exclusive [work] 〈Full〉

Yes. OnePlus devices running OxygenOS 13+ (colorOS codebase) now show this error if you use Oppo fastboot commands on a locked T-Mobile or Verizon model.

: Ensure no buttons (especially the Volume keys ) are stuck. A stuck key can force the phone into these hidden verification menus during boot. Advanced Solutions for Power Users

Oppo introduced the strict "the serial is not match" error in . If you are on ColorOS 13 or 14, the verification is even tighter.

Hold the Power + Volume Down buttons simultaneously until the device vibrates and restarts.

fastboot flashing unlock