To unlock the bootloader of a Xiaomi Black Shark 2 , you must follow the official Xiaomi procedure, which involves linking your device to a Mi Account and using a specialized tool on a Windows PC. ⚠️ Critical Warnings : This process will completely factory reset
fastboot oem unlock
(or JoyUI version) 7 times until you see "You are now a developer". Bind Your Account Settings > Additional Settings > Developer Options OEM Unlocking USB Debugging Mi Unlock Status and select Add account and device . Use mobile data (Wi-Fi must be off) for this step. Boot into Fastboot Mode Power off your Black Shark 2. Volume Down + Power simultaneously until the Fastboot logo appears. Run the Unlock Tool Connect your phone to your PC via USB. Mi Unlock Tool on your PC and sign in with the Mi Account used on the phone.
7. Conclusion & Recommendation
- A Windows PC (or Virtual Machine): ADB/Fastboot drivers work best on Windows.
- Original USB Cable: A cheap cable can disconnect during flashing.
- ADB & Fastboot Tools: Download Platform Tools from Google.
- Black Shark USB Driver: Install the official driver from the Black Shark support page.
- An Active SIM Card: The phone must have network connectivity to bind the account.
- Your Mi/Black Shark Account: You need an account that is >30 days old (sometimes less, but 30 is safe).
: If the tool doesn't detect your phone, try a different USB port (preferably USB 2.0) or reinstall the Xiaomi USB Drivers "Quota Reached"
Re-Locking the Bootloader (Restoring Warranty)