The (also known as the 4G Router 2s) is a compact powerhouse designed for reliable household and small office connectivity. However, many users find themselves limited by carrier-locked firmware that restricts which SIM cards they can use.
There are two primary ways to manage your Huawei router's firmware. Do not disconnect the power during an update, as this can permanently damage (brick) the router. Huawei 4G CPE Router B312-926 - Sincere One Tech Huawei B312-926 Firmware 10.0.3.1-h192sp9c00- Universal