On many modern OnePlus devices (especially those sold in specific regions or via certain carriers), the standard fastboot unlock command is disabled or hidden. Instead, the official pathway requires you to request a unique unlock_token.bin file from OnePlus.
This error indicates that the device security system is rejecting the standard unlock command because it requires a cryptographic signature file (the unlock token) to be flashed to the phone beforehand. Why OnePlus Demands an Unlock Token
The exploit manipulates a flag in the . The Android Boot Loader (ABL) has a backup path: if it sees a specific "magic" value in the param partition, it writes a non-carrier SWID into the RPMB. When you reboot, the check passes, and fastboot oem unlock works without a token.
Your modem and radio partitions remain matched to your hardware.
Open your terminal and navigate to the folder containing the token.
You've probably heard of the term "unlock token" before, but what does it really mean, and why should you bother flashing one on your OnePlus device? Well, let me tell you - unlocking your OnePlus device can open up a world of possibilities and benefits that you never thought possible.
Go to Settings > About Phone and tap Build Number 7 times.
But for some models (particularly or Chinese variants with region locks ), you cannot just run the command. Instead, you must: