This occurs when flashing incorrect modem files. Always use firmware matched specifically to the NXT-AL10 hardware. Conclusion
You cannot flash custom, regional, or unbranded firmware without an unlocked bootloader. This may require a paid service or authorized code if your Huawei account cannot generate one. Charge Device: Ensure your Mate 8 has at least 70% battery.
Upgrading or switching to authorized regional firmware. huawei+nxtal10+firmware+exclusive
Converting the NXT-AL10 to work with international firmware (like NXT-L29) for better global usage and pre-installed Google services.
If the phone gets stuck on the Huawei logo, you likely need to factory reset from recovery mode (Wipe Data/Factory Reset). This occurs when flashing incorrect modem files
Make sure Huawei USB drivers are installed on your PC. How to Flash NXT-AL10 Firmware (Methodology)
Updated firmware often includes optimizations for older hardware. This may require a paid service or authorized
This requires unlocking the bootloader and using fastboot commands to flash boot.img , system.img , and cust.img directly to the device partitions. Where to Find Reliable NXT-AL10 Firmware