For security and stability, you should always source firmware from official channels. Using unofficial third-party sites can lead to "bricking" your device or exposing your network to security vulnerabilities. Official Huawei Support Portal : The primary source for enterprise-grade hardware is the Huawei Enterprise Support Page . Note that downloading from this portal often requires a company account
For retail versions of the router, you can check for and install updates directly through the Huawei AI Life App . How to Update Huawei HG8145V5 Firmware Huawei Hg8145v5 Firmware Download