Note: Free code generators rarely work on modern firmware versions of the Honor 9.
This is the most reliable free method for the HONOR 9 (Kirin 960 chipset), but it requires opening the phone to access a "testpoint". How to Unlock Bootloader in HONOR 9 phone
DC-Unlocker is a professional software that uses a "credit" system to generate an unlock code for Huawei/HONOR devices via the test-point method. It costs around €4 (approximately $4.50 USD). Note: Free code generators rarely work on modern
Unlocking the bootloader of your HONOR 9 phone provides you with the freedom to customize your device to your liking. Here are some benefits of unlocking the bootloader: How to Unlock Bootloader in HONOR 9 phone
Verify connection by typing: fastboot devices (You should see your device serial number listed).