Disclaimer: Modifying your device’s firmware carries inherent risks, including permanent bricking (making the device unusable), data loss, and voiding any remaining warranty. The methods described below involve unofficial workarounds that may violate terms of service. Proceed at your own risk. The Short Answer (Spoiler) Officially: Impossible. Unofficially: Extremely difficult, paid, and risky.
The Honor 8C is a digital fortress. While paid tools technically exist, they are for old firmware versions that almost no one has. If your phone is on EMUI 9.1 or 10, consider the bootloader permanently locked. Your best path is to accept the stock experience or upgrade to a more developer-friendly device. Have you successfully unlocked an Honor 8C recently? Share your firmware version in the comments – but don’t get your hopes up. How to Unlock Bootloader in HUAWEI Honor 8C phone
Do not attempt unless you are a reverse engineer with JTAG equipment. Path 3: The "IDT Mode" / Huawei Flash Utility (Brick Risk) Some paid services offer "IDT Mode" flashing (Huawei’s internal download tool). They claim they can flash an engineering preloader that ignores bootloader lock. The Short Answer (Spoiler) Officially: Impossible
Even if they flash an engineering bootloader, the Honor 8C’s TrustZone will reject any unsigned kernel. The phone will enter a bootloop. To recover, you need a full stock firmware flash via IDT again – which costs another fee. While paid tools technically exist, they are for
Historically, HCU Client did support the Honor 8C via "Test Point" mode (shorting two pins on the motherboard to force Huawei’s download mode). However, Huawei patched this server-side around EMUI 9.1 / 10 updates.
Developers on XDA have tried modifying PotatoNV for Kirin 632, but the exploit requires physical access to the test points and a low-voltage serial adapter (UART). Even then, the generated code usually fails to unlock the fastboot lock.