Step 8 – Write the following command in the same command prompt window and press enter.
fastboot flashing unlock
Step 9 – There would be a pop up on the phone saying asking you to confirm unlocking the bootloader. Select “Yes” by pressing the power button and navigate using volume buttons.
Step 10 – Reboot and enjoy!
That’s it! Your Razer Phone 2 bootloader is now unlocked! You can now install a custom recovery, a custom ROM or any system tweak you like. Just be careful with what you do! 😉