Look for an item with a yellow exclamation mark under . It will likely be named Huawei Mobile , Unknown Device , or CDC Serial . Right-click the unknown device and choose Update Driver . Select Browse my computer for drivers .
Once the driver is installed, your PC will likely identify the connection as a new network. Open > Change adapter settings .
The is a critical software component used primarily during the local maintenance and commissioning of the BBU3900 (Baseband Unit) in Huawei's BTS3900 series base stations. It enables a PC to communicate with the BBU via its USB port, typically through a specialized USB to Ethernet LMA (Local Maintenance Adapter) cable . Core Functionality & Purpose bbu3900 usb driver
Download the Huawei Wireless HS-USB Ethernet Adapter Driver DriverScape link .
The BBU3900 features a main control board—typically the (Universal Main Processing Transmission unit)—which houses the local maintenance ports. Look for an item with a yellow exclamation mark under
However, connecting a PC’s USB cable to the BBU3900’s USB port does not yield a standard COM port immediately. Instead, a proprietary inside the BBU3900 requires a specific Windows driver.
If you are looking for a specific version of the driver, I can help you find more details if you can tell me: What are you using (e.g., Windows 10, 11)? Select Browse my computer for drivers
Windows XP, Windows 7, Windows 8.1, or Windows 10/11 (32-bit or 64-bit). Step-by-Step Guide: Installing the BBU3900 USB Driver
: These drivers are proprietary and are generally not available for public download. They must be sourced through the Huawei Support (Enterprise or Carrier) portal, which requires an authorized account.
Windows may display a security warning stating that the driver publisher cannot be verified. Click "Install this driver software anyway."
Windows 10 (32-bit and 64-bit) – Most common for modern field laptops