, you can use either official automated methods or a manual local update via the web interface. How to Update Firmware
Cellular Specifications. Cellular Standards. 4G LTE. Cellular Bands. LTE Band 1, LTE Band 3, LTE Band 5, LTE Band 38, LTE Band 40. Rfwel Engineering Huawei 4G LTE Router B312-926 User Manual
Before updating, it's a good practice to backup your device's current settings. This can usually be done through the device's web interface.
is generally categorized as a "general" or "universal" firmware used to restore or update the device across different regions. Firmware Details Version Number 10.0.3.1(H192SP9C00) File Name (Example)
