Once complete, your Huawei B311221 transforms from a crippled carrier router into a powerful, global 4G modem capable of band aggregation, low latency, and full carrier flexibility.
Once you have the code, follow these steps to install a new SIM and unlock the device: Insert New SIM: unlock huawei b311221 install
Warning: Flashing the wrong firmware can brick your router. Follow exactly. Once complete, your Huawei B311221 transforms from a
should appear automatically. Carefully enter the unlock code you obtained. Confirmation unlock huawei b311221 install