Firmware | Huawei B311s-220 Unlock

The B311s-220 has two external antenna ports (CRC9). After unlocking, you can force external antenna mode via the engineering menu (192.168.8.1/html/content.asp).

  • Patch:
  • Re-calculate checksum (Huawei uses CRC + header signature).
  • Flash via:

    • Generic Huawei firmware (e.g., 11.178.01.00.00) is updated more frequently than carrier versions. You get better LTE handover, reduced ping, and fixed bufferbloat issues. huawei b311s-220 unlock firmware