The firmware relies heavily on the Renesas Smart Configurator to generate drivers for:

If you need advanced functionality like bridge mode, full IPv6, or VPN server, consider open-source alternatives like OpenWRT — but note that OpenWRT is not officially available for the B628-265 due to the proprietary LTE modem driver.

Simply put, firmware is the permanent software programmed into the router’s read-only memory. It acts as the operating system for your B628-265, controlling everything from how it manages your SIM card connection to how it routes traffic over Wi-Fi and Ethernet.

If you are experiencing random reboots or issues with specific devices connecting to the 2.4GHz or 5GHz bands, a firmware update frequently addresses these bugs. How to Check and Update Your B628-265 Firmware

New firmware versions often resolve connection drops, improve carrier aggregation (combining different LTE bands for faster speeds), and enhance Wi-Fi stability.

Connect your computer or phone to the B628-265 Wi-Fi network.

: A typical version might look like 11.0.3.1(H380SP1C00) . 2. How to Update B628-265 Firmware

If your router uses a carrier-locked firmware that blocks automated global updates, you can apply updates through the local web dashboard if you have the correct local file ( .bin format): Huawei B628 LTE CPE CAT12 - 4PDA

Sometimes new firmware resets your Wi-Fi channel to a crowded spectrum.

Understanding the B628-265 Firmware: A Comprehensive Guide to Updates and Optimization

Look for the section (if available on your specific software variation). Browse and select your downloaded firmware file. Click Update and wait for the process to complete.