How to install ADB / fastboot tools for OnePlus 3 Important! You can’t lock the bootloader with custom recovery installed on your device or you’ll get the hardbrick. In case you need to lock bootloader again, repeat the same steps as above, but in the step 10 we use another command “Fastboot oem lock”. Congratulations! OnePlus 3 device is now unlocked.Use volume keys to navigate and press “Power” button to confirm. Now confirm bootloader unlocking by selecting “YES” on your device.Pay attention! This will delete all data from your phone! Don’t forget to make all required backups: Now enter the following command to unlock the bootloader on your OnePlus 3 or OnePlus 3T device.If you device is not identified then check if all the drivers are installed correctly. If you see your device serial number in the command window you can continue to the next step.Now enter this command to see the list of connected devices:.
Go to the folder with unpacked ADB / fastboot tools, hold “Shift” key + right mouse button and select “Open command window here”. Connect your device to PC via USB cable.
To do this manually: turn off your device completely, press and hold “Volume Up” and “Power” buttons at the same time, after a few seconds you should see a fastboot logo on the screen.