Step 1: Activate Developer Options and OEM Unlocking
After your phone is in fastboot mode, type fastboot oem unlock in the command window or terminal. You will see a warning message on your phone’s screen. Use the volume keys to move to Yes and push the power switch to confirm. How to Unlock Bootloader in HONOR 6 Plus phone
Step 4: Unlock the Bootloader
Head to your phone’s Settings > About phone. Tap on Build number 7 instances to activate Developer options. Return back to Settings > Developer options. Scroll down and switch on OEM Unlocking. Step 1: Activate Developer Options and OEM Unlocking