: A metal object (like tweezers) is used to short a specific boot pin to the ground while connecting the device to a PC via USB. Loading the Binary : Once the PC detects a "BOOT_3G" COM port, tools like Balong USB Downloader are used to send the usbloader.bin file to the device. Firmware Restoration
(Smartbro or similar) as files for variants like the E5573s-606 or E5573cs-322 may be incompatible. Shenzhen Sincere One Technology
(e.g., one meant for the E5573Cs instead of the E5573s) can permanently brick the device.
Click the file selection icon ( ... ) and load your dedicated e5573s320_usbloader.bin file. e5573s320 usbloaderbin hot
This article explores what the "E5573s-320 usbloader.bin hot" process entails, why it is used, and the risks associated with it. What is E5573s-320 USBloader.bin?
: Typically extracted from transitional firmware matrices (such as the legacy E5573 21.110.9 package).
Disclaimer: Modifying firmware can result in a hard brick if done incorrectly. Proceed with caution. : A metal object (like tweezers) is used
: Ensure your binaries match perfectly. Tools like the Huawei LTE Routers Mods Signcheck Utility can inspect your local .bin files beforehand to verify they align with the signature requirements of your specific Balong E5573 variant.
Unlike standard USB tethering, the (also called Download Mode or COM 1.0 mode ) is a low-level recovery state. To enter this mode on the E5573s-320:
Flashing custom firmware to remove network locks. Shenzhen Sincere One Technology (e
While holding the bridge steadily, plug the USB cable into the PC.
Safety & legal
Firmly touch one end of the tool to the boot pin pad, and bridge the other end directly to the metallic outer shell of the micro-USB port structure (Ground). Step 3: Interfacing with the PC