: Unlocking the bootloader will factory reset your device, erasing all data. 2. Get Your Unlock Code
For OnePlus 8/9/10 users, you can sometimes downgrade to an early OxygenOS 11 build using the (a unbrick tool that resets your phone to factory firmware). Early OOS 11 builds on these devices did not require a token.
To resolve this, you generally need to provide your device's unique identifier to OnePlus to receive an ".bin" unlock token file, which "permits" the flashing process. 🛠️ How to Resolve the Error 1. Get your Device ID please flash unlock token first oneplus better
Connect your phone to your PC and run:
Once you receive the unlock_token.bin file, place it in your ADB/Fastboot folder and run these commands: : fastboot flash cust-unlock unlock_token.bin Run the unlock command : fastboot oem unlock : Unlocking the bootloader will factory reset your
This process is rarely smooth. Here are common problems and solutions:
Ensure your device is fully paid off and meets your carrier's unlock policy requirements. Early OOS 11 builds on these devices did not require a token
: Ensure your device is permanently SIM unlocked by your carrier (e.g., T-Mobile ).