Usually yes. Always backup settings first.
Because Huawei does not host consumer firmware downloads directly on their website, you must proceed with caution. Huawei Echolife Hg8145v5 Firmware Download
The Huawei EchoLife HG8145V5 is a widely deployed dual-band Routing-type Optical Network Terminal (ONT) used in Gigabit Passive Optical Network (GPON) networks. It features high-performance forwarding capabilities to ensure an excellent experience with voice, Internet, and HD video services. Usually yes