Added:

Huawei Mediapad M2 10.0 Premium Edition M2-A01L (read bootloader code, FRP unlock);
Huawei Mediapad M2 10.0 Standard Edition WiFi M2-A01W (read bootloader code, FRP unlock);
Huawei Glory 4 (read unlock codes, direct unlock);
ORANGE DIVE 70 (read unlock codes, unlock, read bootloader code, FRP unlock);
Huawei Ascend Alek 4G (read unlock codes, unlock, read bootloader code);
Huawei Maimang and Maimang 3S (direct unlock, read bootloader code);

Huawei E5577-321 Zain 21.200.05.00.375 unlock guide

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Bootloader unlock app for Android
Search for DC Huawei Bootloader codes on GooglePlay