For the most secure and compatible software, it is highly recommended to use official Huawei support channels.
This is the standard way to check for and install official updates directly from the router's interface. wifi-stock.com HUAWEI LTE Cat.4 WiFi Router (B311-221) - wifi-stock.com huawei b311221 firmware download link
is a popular 4G LTE wireless gateway designed for home and small office use, offering download speeds up to 150 Mbps and support for up to 32 devices. Keeping your device's firmware up to date is essential for maintaining network stability, security, and accessing new features like improved SMS functionality or IPv4/IPv6 dual-stack support. Official Firmware Download Links For the most secure and compatible software, it