Save your current layout configuration file before upgrading.
Most Huawei DG8245V-10 gateways are managed remotely by your Internet Service Provider via the TR-069 protocol. This means the ISP pushes stable firmware updates automatically. Leave your router powered on overnight.
Do not turn off the router or unplug the power cable during the process. The update takes 3 to 5 minutes. The router will automatically reboot when finished.