Here's a step-by-step guide to unlock the bootloader on your HUAWEI Honor 6A phone:
If you have managed to acquire a 16-digit unlock code through a service, follow these manual steps: How to Unlock Bootloader in HUAWEI Honor 6A phone
For historical context, here is what you would have done before 2018: Here's a step-by-step guide to unlock the bootloader
Your phone will ask for confirmation. Use the volume keys to select and press power. How to Unlock Bootloader in HUAWEI Honor 6A phone