: Before any manual update, it is highly recommended to back up your current configuration file within the System Tools Factory Reset
But attempting to force an update carries a unique danger. The HG8145V5 has a strict bootloader. If you flash a firmware file that isn't digitally signed for your specific ISP's hardware revision , the device will reject it. In the worst-case scenario, you could corrupt the bootloader partition. Huawei Hg8145v5 Firmware Update
If you decide to proceed, remember the golden rules: : Before any manual update, it is highly