The is a routing-type Optical Network Terminal (ONT) used in GPON solutions. Updating its firmware is an "exclusive" process typically restricted to authorized service providers or users with specific enterprise permissions. Firmware Access and Requirements

Never update firmware over Wi-Fi. Connect your computer directly to one of the LAN ports of the EG8141A5 using a reliable Ethernet cable.

+------------------------------------------------------------+ | Your Computer (Ethernet) ----> [LAN Port] Huawei EG8141A5 | +------------------------------------------------------------+ Open a web browser on your connected computer.