For community-driven support and specific file downloads, the Huawei E173 thread on 4PDA remains a highly detailed resource for troubleshooting. Unlock USB модема E173u-1 - BlackBox
: Run a calculator to get both the Unlock Code (for the SIM) and the Flash Code (required for firmware updates). Huawei E173u-1 Unlock Firmware
Have a question about your Huawei E173u-1 unlock firmware? Leave a comment below or join the discussion on our GSM forum. Huawei E173u-1 Unlock Firmware
While unlocking a device for personal use to switch carriers is often considered permissible in many jurisdictions, distributing proprietary firmware files is a violation of intellectual property rights. Huawei does not publicly release firmware binaries for end-user flashing; they are intended for internal service center use only. Huawei E173u-1 Unlock Firmware