V20a Driver | Ralink Rt3090bc4

Because this is a combo card, you must install two separate driver packages to enable both Wi-Fi and Bluetooth functionality. Windows 10 and Windows 11 (64-bit)

Check the Lenovo Support layout for IdeaPad series laptops from the Sandy Bridge/Ivy Bridge era. 3. MediaTek Legacy Driver Archive

Select , click Have Disk... , and browse to the extracted folder.

MediaTek occasionally hosts legacy drivers for Ralink chipsets, though they often group the RT3090 with the RT2800 series. 3. Microsoft Update Catalog

(though some variants list up to 300Mbps) on the 2.4GHz frequency band. Intelligent Coexistence ralink rt3090bc4 v20a driver

– Obtain the driver package from a trusted source and extract it to a folder on your desktop.

For Windows 10 users, the is a lifesaver. Search for "RT3090" or the hardware ID.

In Device Manager, right-click the adapter, go to Properties > Power Management , and uncheck "Allow the computer to turn off this device to save power".

: MediaTek acquired Ralink, so modern drivers are often listed under MediaTek, Inc. in update catalogs. Windows 10/11 : While official legacy support is limited, the Microsoft Update Catalog Because this is a combo card, you must

This suggests the Bluetooth portion of the combo card is functioning but the Wi-Fi driver is either missing or corrupted. Try reinstalling only the Wi-Fi driver. If that doesn't work, there may be a hardware issue specific to the Wi-Fi radio section of the card.

The situation for Linux users is significantly better due to open-source kernel drivers.

Locate the failing device. It usually appears under or Other Devices with a yellow exclamation mark. Right-click the device and select Update driver . Choose Browse my computer for drivers .

Before diving into drivers, it helps to understand exactly what this component is and what it does. The Ralink RT3090BC4 is a combo wireless card that integrates both Wi-Fi and Bluetooth 3.0 capabilities into a single compact module. MediaTek Legacy Driver Archive Select , click Have Disk

HP laptop users in particular have reported a problem where the Wi-Fi indicator light remains orange (off) even though the driver appears to be installed correctly. The system may show no wireless networks available despite the Wi-Fi adapter being physically present.

: Fully compatible with Windows 7, Windows 8, and Windows Vista. How to Download and Install the Driver

There is no official Ralink driver page anymore. MediaTek's website may have legacy drivers in some regions, but most older links return 404 errors. Your best bet is the Microsoft Update Catalog or your laptop manufacturer's support site.

Offers the specific driver for ASUS laptops.

Provides links to various driver versions, including those compatible with Windows 10 and 11.