Alternative command (older phones): fastboot oem unlock 1234567890123456
adb devices
A professional tool used by repair shops. It requires purchasing a time-limited license or credits. How to Unlock Bootloader in HONOR 9 phone
PotatoNV is an open-source tool that works for the HONOR 9 because it uses the chipset. This method requires opening the device but is the only reliable free option available in 2026. users must rely on specialized tools:
Because official codes are unavailable, users must rely on specialized tools: How to Unlock Bootloader in HONOR 9 phone