Driver Modem Huawei E5372s < 2025 >

Huawei E5372s (often marketed as the Bolt! 4G Slim Mobile WiFi

1. Download the correct .bin firmware file (e.g., from the Huawei Firmware Database). Verify the exact model: Check the sticker under the battery. You need E5372s-XX (e.g., E5372s-601 for Europe, E5372s-155 for Latin America).
2. Connect the modem via USB with the driver fully installed.
3. Run the Update.exe tool (usually included with the driver package).
4. Warning: Do not disconnect power during the 3-minute update. A failed firmware flash bricks the device, requiring a JTAG recovery.

3. Step-by-step driver installation (Windows 10/11)

1. Disable Wi-Fi on your PC (to avoid conflicts).
2. Turn on the E5372s and connect it to PC via USB cable.
3. Windows will try to auto-install. If it fails:
   1. Router Mode (Default): The device works as a standalone WiFi hotspot. No drivers are needed.
   2. Modem Mode (Tethered): You connect the device via USB to a computer. Here, the computer sees the device not as a storage drive, but as a Network Interface Card (NIC) or a standard modem. The driver facilitates this translation.