To make sure I give you the best specific guide, could you tell me: What is the (e.g., E5172s-920)?
If you find a .exe labelled “E5172 Upgrade Tool”: download huawei e5172 firmware upgrade tool
(often used for unlocking or manual flashing) or the standard web interface for official updates. How to Download the Huawei E5172 Firmware & Tool Official Support Site : Visit the Huawei Enterprise Support Portal To make sure I give you the best
1. Connect your computer to the router's Wi-Fi network (or connect the computer to the router's LAN port using an Ethernet cable). HUAWEI Global Update HUAWEI E5172, How To download huawei e5172 firmware upgrade tool
: Visit the official Huawei Support Enterprise page. Note that you may need a registered account or permission to download specific router firmware packages.