Open your (or run the executive firmware installer .exe package).
Snap the motherboard back into its plastic casing and tighten the screws. Plug the modem back into the PC.
Hold the short for 2–3 seconds, then release the tweezers.
This step tricks the modem into loading a functioning bootloader into its temporary RAM, allowing it to accept a new firmware flash. Download and extract the balong-usbdload utility. Open the Command Prompt as Administrator.
Using the wrong firmware can make the, "dead boot" permanent. Ensure the files match the E8372h-153 specifications. Step 6: Finalize and Test E8372h-153 Dead Boot Repair
While holding the short steadily, plug the E8372h-153 into a USB port on your computer. Hold the short for 2 to 3 seconds, then release it.
Locate the correct gold test point (bootpin) on the PCB. On the E8372h-153, this is typically a single isolated gold pad near the shielding cages or the USB traces.
Before initiating the repair process, review these technical constraints:
You can revive your device. This comprehensive guide walks you through the step-by-step process to recover your Huawei E8372h-153 from a dead boot state using the hardware testpoint method. Prerequisites and Requirements Open your (or run the executive firmware installer
If the diagnostic process confirms a dead boot issue, follow these steps to repair the E8372h-153 module:
An "efuse" is a digital one-time programmable switch. On some E8372 models, it blows if an incompatible firmware is flashed, permanently blocking the modem on a specific network.
If successful, the Device Manager will now change from "9008" to "Huawei Mobile Connect" or something similar (identifying as a serial port). Step 5: Flash the Firmware/Full Dump
Locate the specific bootpin point (on the E8372h series, this is typically a single isolated gold dot near the edge of the shield matrix). Hold the short for 2–3 seconds, then release the tweezers
: This low-level format completely overwrites the device memory. All custom settings, profiles, and stored SMS messages will be permanently deleted.
Open your firmware folder and run the firmware installer executable (usually named Update_xx.xxx.xx.xx.exe ).
While keeping steady pressure on both points, plug the modem into your PC's USB port (using a USB extension cable makes this significantly easier).
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