Since the HG8145V is an ONT (Optical Network Terminal), the "better" firmware is usually the one customized and pushed by your Internet Service Provider to ensure compatibility with their fiber-optic infrastructure.

A better firmware will not turn your HG8145V into a $500 enterprise router, but it will stop the random 2 AM reboots, improve your ping spikes, and give you back control over your home network. Upgrade wisely, and enjoy the stability you paid for.

Huawei does not distribute ONT carrier firmware directly to end-consumers through an open public download portal. Because ONTs are considered enterprise/carrier equipment, official downloads require an authorized corporate account on the Huawei Support website. Official Channel (Recommended)

: Never disconnect the power during an update, as this can permanently damage the router. No Rollbacks

Do not turn off the router during this process, as it can brick the device. Alternatives: "Better" Performance Without New Firmware

Your ISP is the primary source for the correct firmware version. Using firmware not approved by your ISP may prevent the ONT from connecting to the Optical Line Terminal (OLT) .

like slow speeds or connectivity drops that prompted you to look for a firmware update? How do I update the firmware version of my HUAWEI router

Open a web browser and type the default gateway IP address (usually 192.168.100.1 or 192.168.1.1 ) into the address bar.

Software & Firmware Download of Enterprise Products - Huawei

If you have recently added new smart home IoT products, Wi-Fi 6 devices, or updated operating systems to your network, older ONT firmware may struggle to assign IP addresses properly or maintain stable handshakes. Newer firmware ensures seamless IPv6 compatibility and better DHCP handling. Understanding Huawei HG8145V Hardware Revisions

Set to "Automatic" or manually pick a less crowded channel. Channel Width: Set to 20/40/80 MHz for maximum bandwidth. TX Power: Set to High to maximize range.