Try the OpenWrt forum archive for “HG255s” – but remember, you may lose ADSL functionality.
Open a web browser and type 192.168.1.1 into the address bar. Press .
: Log in with your credentials, then click on More Functions in the top right corner. Manage Updates : Select Manage Updates from the menu. Perform Update : update+software+in+huawei+hg255s+2021
Never update router firmware over Wi-Fi. If the wireless connection drops mid-transfer, it can permanently corrupt the device. Plug one end of an Ethernet cable into your computer.
Would you like the (TFTP + TTL) in case you decide to experiment? Or are you just curious about the 2021 “update fever” around this old device? Try the OpenWrt forum archive for “HG255s” –
Connect your computer to the HG255s via an Ethernet cable or Wi-Fi.
:
: Go to Advanced > Maintain > Software Upgrade . Check for Updates :