If you require the specific firmware file (e.g., for a repair), you must obtain it from your ISP (the company that provided the router). Huawei does not distribute these files directly to end-users.
If you are attempting to unlock features or change ISP settings, note that the HG8145V5 typically locks the WPA key and administrative account to the specific ISP configuration. Changing the firmware usually does not unlock these restrictions without the specific ISP configuration file. huawei hg8145v5-v2 firmware download
The (and its V2 revision) is one of the most widely deployed Optical Network Terminals (ONTs) used by Internet Service Providers (ISPs) worldwide, including Telmex (Mexico), Movistar, O2, and various Asian carriers. While stable, users often seek firmware updates to fix bugs, improve Wi-Fi performance, or unlock hidden features. If you require the specific firmware file (e
V5V2-5.0.1-Build1738
Before downloading any files, verify your hardware version matches these specs: How do I update the firmware version of my HUAWEI router Changing the firmware usually does not unlock these
Because Huawei does not host consumer-facing downloads, you must rely on alternative sources: