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This is an advanced recovery technique. Steps to Make the Loader Work Download the correct usbloader.bin for E5573s-320.
I need to search for information about the Huawei E5573s-320, the usbloader.bin file, and the process of using it to unbrick or flash the device. I'll also look for any relevant tutorials or discussions. I'll need to search in English and possibly other languages, but given the keyword, English sources might be limited. I'll also search for related terms like "Huawei E5573s-320 unbrick", "usbloader.bin", "Balong USB loader", "Huawei modem recovery", "E5573 firmware upgrade", "E5573s-320 download", and "Huawei E5573 factory reset". search results show several Hovatek forum threads that appear relevant. I need to open these to gather detailed information. I will open result 0, result 1, result 2, result 0 from the second search, result 0 from the third search, result 0 from the fourth search, result 2 from the fourth search, and result 0 from the fifth search. have gathered information from various sources. Now I need to structure a long article. The article should cover: an introduction to the Huawei E5573s-320 and the problem; what usbloader.bin is; preparing for the process; the step-by-step guide; common errors and troubleshooting; alternatives and considerations; and a conclusion. I will cite the sources appropriately. Now I will begin writing the article. Decoding the Huawei E5573s-320 USB Loader: A Definitive Guide to Using "usbloader.bin"
Ensure the USB cable is a dedicated data transfer cable plugged directly into a USB 2.0 port on your computer, as USB 3.0 ports can cause timing mismatches with older Balong bootloaders.
A folder containing the specific E5573s-320_usbloader.bin , a flashing utility (like Balong USB Downloader), a modified firmware (e.g., version 21.x ), and a custom WebUI package. 2. Triggering the Boot Pin (The Test Point Method)
Click the file selection icon (three dots) and browse to the location of your specific file. Click Load or Start .
: Necessary for Windows to discover the raw serial interface.
Step-by-Step Guide: How to Make E5573s-320 usbloader.bin Work
If the modem is not detected as BOOT_3G , reinstall Huawei Mobile Partner or Drivers, or try another USB port.
Run scripts or terminal commands (via port access software like PuTTY) to repair variables like the or NVRAM data if they were cleared during the recovery process.
: Under normal conditions, once usbloader.bin successfully runs, the single "DownLoad Port" will disappear, and the device will instantly reconnect, showing two or three new ports (including a PCUI Port and a Modem Port ). If the ports disappear and never come back, the loader has crashed inside the modem RAM.
