How To Unlock Bootloader In Huawei Y7 Pro 2019 -

HCU Client, DC-Unlocker, PotatoNV (for certain Kirin chips).

Optional but likely needed: A fine tweezer or conductive wire for the "Test Point" method. The Reality of Unlocking Modern Huawei Devices how to unlock bootloader in huawei y7 pro 2019