Repair ((top)): E8372h-153 Dead Boot

: Forcing the USB bootpin requires opening the plastic casing. Work slowly to avoid damaging the internal surface-mounted components (SMDs). Required Tools and Software Downloads

Opening your device and shorting pins carries a risk of permanent hardware damage. Ensure you are using the correct firmware version for your specific region and provider (e.g., Zong, Telenor, or generic) to avoid IMEI or signal issues.

This is the most complex and risky method for reviving a completely dead modem. It involves directly manipulating the hardware.

If Windows shows a yellow exclamation mark next to the new port, the system cannot communicate with the modem chip. Right-click the detected device in Device Manager. Select > Browse my computer for drivers .

Check your Device Manager. You should see a new device listed under Ports, usually named or 3G PCUI Port (assigned to a specific COM number, e.g., COM3).

If the device is detected but acting buggy, try a physical reset by holding the Reset button under the cover for 2 seconds.

Locate the specific boot pin for the E8372h-153. (For this specific model, it is typically a small golden dot located near the edge of the board close to the USB connector, or right next to the internal Wi-Fi antenna trace).