When a Huawei modem is bricked (e.g., stuck on a boot loop or displaying solid white/red lights) or blocked by firmware security policies, the standard Windows operating system cannot communicate with it through basic USB commands.
Performing this repair requires hardware access and specific software tools, such as those discussed on Hovatek and RouterUnlock . : Disassemble the modem to expose the motherboard. Locate the boot pin (test point).
Demystifying the Huawei E5573s-320 : How the usbloader.bin File Powers Firmware Repairs and Network Unlocks Huawei E5573s-320 e5573s320 usbloaderbin work
Open your firmware update tool (e.g., Huawei Flasher or a standard firmware EXE). Follow the prompts to install the new firmware and Web UI. Troubleshooting Tips
While maintaining a firm connection on the short circuit, plug the micro-USB cable into your PC. When a Huawei modem is bricked (e
Locate the (typically a small circular contact near the USB port).
If you followed the steps but the loader doesn’t work, here are common culprits: Locate the boot pin (test point)
Click the file selection button (often represented by three dots) and browse to your downloaded file.