A slight hardware variant with specific band allocations.
Uninstalling the Firmware (*.deb) - Huawei Technical Support
The Huawei E5172 features an RJ11 port for regular analog phones. Original firmware fully enables voice services over LTE or VoIP, which some carriers deliberately disable. huawei e5172 firmware original
The newest firmware (from 2019–2020) introduced stricter region locking and disabled some diagnostic features. Many advanced users stick to late-2018 builds for flexibility.
To find the original firmware, you need to know exactly what is currently running on your device. A slight hardware variant with specific band allocations
Flashing an s-22 firmware onto an s-920 (or vice versa) will the device. Always check the sticker on the bottom of your router.
Always verify that any firmware you find matches your exact model number (e.g., E5172s-22) and ideally, the specific software region or version your device currently uses. Flashing an s-22 firmware onto an s-920 (or
Set a static IP on your computer's local network adapter (e.g., IP: 192.168.1.100 , Subnet: 255.255.255.0 ). Open the Multicast Upgrade Tool software on your computer. Select your network card from the tool's dropdown menu.
: Use the default username and password (usually admin / admin ) found on the sticker at the bottom of the router.