You will see "Test Mode" watermark on desktop. After driver installation, turn it off with:
Because the RT3290 is quite old, it may struggle with modern Bluetooth 5.0+ features or "Modern Standby" in Windows 11. If connection drops persist, a cheap USB Bluetooth dongle is often a more stable long-term solution. Microsoft Support Are you seeing a specific error code (like Code 10 or Code 43) in your Device Manager right now? Fix Bluetooth problems in Windows - Microsoft Support Ralink Rt3290 Bluetooth Driver Windows 11
(if your laptop supports modular cards). Compatible modern replacements (same Mini PCIe half-size slot): You will see "Test Mode" watermark on desktop
Updating the Ralink Rt3290 Bluetooth driver on Windows 11 is essential to ensure that your Bluetooth device functions properly. An outdated driver can cause connectivity issues, slow data transfer rates, and even prevent your device from being detected. Microsoft Support Are you seeing a specific error
Check and click Apply . Run the installer and restart your PC. Troubleshooting Tips