The 16-digit bootloader unlock code (OEM code) specific to your device's IMEI. Step 1: Prepare the PC Environment
While holding the short, plug the modem into your PC's USB port. Release the tweezers after 2 seconds.
In DL mode, the PC sees a device (VID 12d1, PID 3603).
: If using an extension, ensure it handles data transfer reliably. Software and Files e8372h320 unlock firmware install
: Use a Windows PC (Windows 7 or 10 is most stable for drivers). : Install the HUAWEI USB COM Drivers
The flashing wizard will open and automatically detect your modem.
: Ensure you have the necessary serial drivers installed on your computer, such as the Huawei Modem Drivers or FcSerialDrv to allow your PC to recognize the device in diagnostic mode. The 16-digit bootloader unlock code (OEM code) specific
A small conductive tool (tweezers or a sewing needle) if a hardware testpoint short is required. 2. Software & Files Package
Wait for the command line interface or software progress bar to display a success message (e.g., Update Success or Firmware Flash Completed ). Step 5: Flash the Unlocked WebUI
This process forces the modem into and flashes the new unlock firmware. In DL mode, the PC sees a device (VID 12d1, PID 3603)
Follow the on-screen instructions. It will prompt for a flash code. Enter the flash code acquired based on your IMEI. Wait for the process to complete. 3. Install the Unlocked WebUI/Firmware
Modified or "universal" firmware versions offer several advantages over stock carrier versions:
Ensure your laptop is plugged into power. A power loss during flashing can permanently damage the modem.