Once updated, Huawei routers typically cannot be rolled back to an older firmware version.
With this LTE router from Huawei you can surf at a speed of up to 150 MBit/s. Conrad Electronic Huawei B311-221 Unlock 4G LTE Router - Tech in Budgets huawei b311-221 firmware download
Do not proceed to download unless your model string exactly matches the firmware description. Once updated, Huawei routers typically cannot be rolled
: Ensure your computer or phone is connected to the router via Wi-Fi or an Ethernet cable. huawei b311-221 firmware download
Updates often fix the dreaded "random reboot" or Wi-Fi drop-off issues.
Before updating, go to System > Backup & Restore to save your current configuration just in case. Troubleshooting