Search strings to use on Google: "HG8145V5" bin firmware download OR "V500R019C20SPC135" download .
: Because ONTs are specifically configured to work with an ISP's network (OLT and NMS), downloading the wrong firmware version can cause the device to stop working. Most ISPs push updates automatically or can provide you with the correct file upon request. Huawei Hg8145v5 Firmware Download