Huawei B660 Firmware _best_ Here

This creates a bifurcated reality: on one hand, firmware updates are critical for patching vulnerabilities like CVE-2021-37071 (a remote code execution flaw found in some Huawei LTE routers). On the other hand, an ill-fated update can lock the device to a different region’s frequency bands, rendering it a paperweight. The firmware thus becomes a barrier to longevity. A B660 running its original 2019 firmware might be insecure but functional; a B660 updated improperly becomes a brick. In this sense, the firmware is not a tool for the user but a test of the user’s technical literacy.