Ralink Rt3090bc4 V20a Driver | Trusted Source

Ralink RT3090BC4 V20A is a single-chip wireless combo module that integrates both 802.11n Wi-Fi Bluetooth 3.0

. Often found in HP and ProBook laptops (HP Spare: 602992-001), it is designed as a Half MiniCard for space-constrained mobile platforms. OCTOPART.ru Key Hardware Features Dual-Functionality

: Combines 802.11n WLAN and Bluetooth 3.0 + HS (High Speed) on a single die to save up to 20% in costs and 80% in space compared to discrete solutions. Performance : Supports maximum data rates of up to

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

: Features a built-in algorithm that balances transmission power between Wi-Fi and Bluetooth to minimize interference when both are active. : Connects via a Mini PCI Express (PCIe) slot. WIT Computers Driver & Support Information

For the Ralink RT3090BC4 (802.11b/g/n + Bluetooth Combo) commonly found in HP laptops, here are the driver details and installation options based on a 2014-2016 search: Recommended Driver Versions

Best for Win 10/8.1/8 (64-bit): Version 5.00.52.0000 or 5.00.57.0000 (Released 2014-2016) ralink rt3090bc4 v20a driver

Best for Win 7 (32/64-bit): Version 5.00.46.0000 or 5.00.03.0000 Driver File: netr28x.inf (used by MediaTek/Ralink) Driver Download & Text Installation Steps

Download: Use trusted repositories such as Driverscape or Softpedia for Windows 10/8/7. Extract: Extract the downloaded file. Install via Device Manager: Open Device Manager (right-click Start > Device Manager). Find the Ralink device under Network adapters.

Right-click, choose Update driver > "Browse my computer for driver software".

Select the folder where you extracted the driver and click Next. Common Fixes (If Driver Fails)

HP Users: If the Wi-Fi card isn't detected, it may be whitelisted in the BIOS. Reset your BIOS to default settings (often F9 in BIOS).

Bluetooth: The RT3090BC4 is a combo card. Ensure you also download the Bluetooth driver to get both working. If you can tell me: Ralink RT3090BC4 V20A is a single-chip wireless combo

Which Operating System you are using (e.g., Windows 10 64-bit, Windows 7)? Are you having issues with the Wi-Fi or the Bluetooth? I can provide the direct link to the correct driver. Updating the WLAN Ralink RT3090 - Microsoft Q&A

Ralink RT3090BC4 V20A is a single-chip 802.11n Wi-Fi and Bluetooth 3.0 + HS combo adapter

designed for notebooks, netbooks, and mobile computing platforms . It operates on the 2.4 GHz frequency and supports data transfer rates up to Technical Specifications Interface: Mini PCI Express (Half MiniCard) Standards: IEEE 802.11b/g/n and Bluetooth 3.0 + High Speed (HS) Hardware ID: Commonly identified as PCI\VEN_1814&DEV_3090 OEM Integration:

Frequently used in HP (Part #630705-001 or 602992-001), Lenovo (IdeaPad S206), and ASUS (K43SJ) laptops Driver Support and Compatibility

The driver enables core networking and Bluetooth functionality, including support for 22 Bluetooth profiles such as stereo audio and video streaming Wireless card Ralink RT3090BC4 not supported

Assuming you want detailed technical features and capabilities of the Ralink (MediaTek) RT3090BC4 v2.0A wireless adapter/driver, here’s a concise, technical summary plus where to look for driver/firmware details and troubleshooting tips. Ralink : The original manufacturer

Linux Driver Installation (rt2800pci)

The good news: Linux distributions have native support. The ralink rt3090bc4 v20a driver on Linux is actually the rt2800pci kernel module.

The Ultimate Guide to the Ralink RT3090BC4 V20A Driver: Installation, Troubleshooting, and Legacy Support

Part 1: Understanding the Ralink RT3090BC4 V20A Chipset

Before diving into drivers, it is crucial to understand what this component actually is. The "Ralink RT3090BC4 V20A" is a mouthful, so let's break it down:

• Ralink: The original manufacturer. Ralink was a leading fabless semiconductor company known for its Wi-Fi chipsets. In 2011, MediaTek acquired Ralink, which is why you will often find drivers under the MediaTek brand today.
• RT3090: This is the core chipset model. It is a single-chip, 1x1 802.11n (Wi-Fi 4) solution designed for low-power, embedded applications. It operates on the 2.4 GHz band only (no 5 GHz support).
• BC4: This likely refers to a specific board configuration or reference design version. It may indicate a particular PCB layout, antenna configuration (often 1T1R - one transmit, one receive), or a manufacturing revision.
• V20A: This is a more granular revision indicator. It might point to a specific firmware version, a change in the component's BOM (Bill of Materials), or a compatibility marker for certain OEMs like ASUS, Acer, HP, or Lenovo.

Troubleshooting & performance tuning

• Ensure correct, vendor-matching driver + firmware blob for full capabilities.
• On Linux, check dmesg for firmware load failures (search for "rt3090", "rt2800", "mt76", or "firmware").
• If throughput low: verify 20 vs 40 MHz channel width, signal strength, antenna connection, and country/regulatory settings.
• For frequent disconnects: disable power management in driver/OS as a test.
• To enable monitor/AP mode: use drivers that explicitly support those modes (rt2x00/mt76); legacy drivers may lack full support.
• Windows: use Device Manager to update/uninstall/reinstall driver and check vendor support pages for signed drivers.

Part 6: Advanced Use Cases for the RT3090BC4 V20A

For hardware hackers and tinkerers, this chipset has a second life.

Method 1: Forcing the Windows 7 Driver

1. Download the official Ralink RT3090 driver for Windows 7 (64-bit recommended, even on 64-bit Win10/11).
2. Extract the ZIP file to a folder (e.g., C:\RT3090_Driver).
3. Open Device Manager (Right-click Start button > Device Manager).
4. Locate the Network Adapters section. Your card may appear as:
   • “Unknown device”
   • “Network Controller” (with a yellow exclamation mark)
5. Right-click > Update driver > Browse my computer for drivers.
6. Click Let me pick from a list of available drivers on my computer.
7. Click Have Disk > Browse.
8. Navigate to the extracted folder, then go to the Win7 or Win8 subfolder, and select the .inf file (e.g., netr28x.inf).
9. Ignore the “driver not signed” warning (on Win10/11, you may need to disable Driver Signature Enforcement temporarily).
   • To disable: Restart PC > Press F7 on boot > Select “Disable driver signature enforcement”.
10. Install the driver. Reboot.

For Arch-based:

sudo pacman -S linux-firmware

Troubleshooting on Linux: If the card is detected but no networks appear, disable hardware encryption:

sudo modprobe -r rt2800pci
sudo modprobe rt2800pci nohwcrypt=1

To make permanent:

echo "options rt2800pci nohwcrypt=1" | sudo tee /etc/modprobe.d/rt3090.conf