Most ISPs customize the Huawei hardware with their own branding, login credentials, and configuration settings. If you flash a firmware version that is incompatible with your specific hardware revision or ISP configuration, you risk the device—rendering it permanently unusable.
Running outdated software on your router is like driving a car that hasn't had an oil change in years. You might get where you're going, but you aren't getting the best performance. huawei hg8245w5 firmware upgrade top