If you purchased an unbranded, unlocked version of the SR120-A, you must source the firmware directly from FiberHome’s official enterprise support channels. Avoid downloading .bin files from third-party forums or unverified file-sharing sites, as these may contain malware or corrupted data. Step-by-Step Manual Firmware Upgrade Process
Based on user reports, common firmware versions found in the wild include: fiberhome sr120-a firmware
Never attempt a firmware upgrade over Wi-Fi. If the wireless connection drops mid-process, the router will become permanently broken ("bricked"). If you purchased an unbranded, unlocked version of