Once the software displays a "Success" or "Finish" message, the modem will automatically reboot. Troubleshooting Common Update Failures Error: "Device Not Found"
Do not rush the firmware update process, as interrupting it can "brick" (permanently damage) your device.
If an update is available, click and allow the process to finish without unplugging the device. Method 2: Manual Local Flashing (Advanced Users) huawei e8372h-155 firmware update
: Addressing specific issues, such as connectivity problems with certain branch gateways. Latest Firmware Versions
Connect the device directly to a laptop or PC USB port. Do not use unpowered USB hubs. Once the software displays a "Success" or "Finish"
Open your device manager to verify which COM ports are assigned to the device.
Click on "Local Update," browse for the downloaded .bin file, and select it. Method 2: Manual Local Flashing (Advanced Users) :
| Risk | Consequence | Mitigation | |------|-------------|-------------| | Wrong firmware | Brick (no LED, no USB detection) | Only use exact -155 or generic E8372 firmware. | | Power loss during flash | Hard brick (requires serial reflash) | Use laptop battery + stable USB port. | | Signature mismatch | “Update failed” in Web UI | Use signed firmware (Huawei .bin with PKCS#7). |
Updating the firmware on a (often called the LTE Wingle) is typically done through its web-based management interface or the official mobile app. Standard Update Methods
: Fixes random disconnections and optimizes internal LTE antenna switching.