WARNING
Huawei P20 EML-xxx all versions not supported
Huawei P20 Pro CLT-xxx all versions not supported
Huawei Mate 10 ALP-xxx upgraded to Android 8x not supported
Huawei Mate 10 Pro BLA-xxx upgraded to Android 8x not supported
Huawei P10 VTR-xxx upgraded to Android 8x not supported
Huawei P10 plus VKY-xxx upgraded to Android 8x not supported
Huawei Mate 9 MHA-xxx upgraded to Android 8x not supported

Huawei Bootloader unlock code instant reading from phone with DC-Unlocker application (Windows PC only).
Supported devices: https://www.dc-unlocker.com/android-feature-table?filter=bootloader
Code reading guide: https://www.dc-unlocker.com/how-to-read-huawei-bootloader-unlock-code
How unlock bootloader https://www.dc-unlocker.com/free-huawei-bootloader-unlock-tutorial

Service for working phones only!
If your phone stuck in fastboot you need repair phone first.(example with DC Phoenix)

All services are paid.
Code By IMEI service currently offline