: Patches vulnerabilities that could allow unauthorized access to your network.
No. Firmware updates do not remove carrier SIM locks. That requires an unlock code. Huawei Router Firmware Update Download
Think of your router as a computer. Without an operating system like Windows or macOS, the hardware is useless. Similarly, without firmware, your router cannot function. Huawei, like other manufacturers, periodically releases new firmware versions to improve this "operating system." the hardware is useless. Similarly