Go to the Advanced tab > Maintenance > Software Upgrade .
The is a high-performance routing-type Optical Network Terminal (ONT) commonly used in fiber-to-the-home (FTTH) solutions. It features dual-band Wi-Fi (2.4 GHz and 5 GHz) and provides gigabit-speed access for voice, data, and HD video services. Huawei Echolife Hg8245w5 Firmware Download - Google
Never turn off the power during an update. This will break the router. Go to the Advanced tab > Maintenance > Software Upgrade
80%... 99%...