Unfortunately, Huawei does not publicly list hotspot firmware on their consumer support pages like they do for phones. Instead, they distribute updates via:
Since Huawei does not host public firmware easily, the community has stepped in. Trusted sources include: Huawei E5573cs-609 Firmware Download
In the world of mobile broadband, Huawei is a well-known brand that offers a wide range of wireless modems and routers. One of its popular devices is the Huawei E5573cs-609, a 4G LTE mobile hotspot that provides fast and reliable internet connectivity on the go. However, like any other electronic device, the E5573cs-609 requires periodic firmware updates to ensure optimal performance, security, and compatibility with various networks. like any other electronic device