Some advanced methods involve using or Balong USB downloader mode (shorting test points on the PCB), but this is rarely needed for the B311-221.
Select the firmware file (e.g., a generic B311-221_10.0.1.1(H187SP60C983) or newer) 1.2.3. huawei b311-221 unlock firmware
: Flashing incorrect firmware can permanently damage your router. Preparation Some advanced methods involve using or Balong USB
Always use an Ethernet cable to connect your PC to the router. Never attempt to flash firmware over Wi-Fi. huawei b311-221 unlock firmware