Driver Bluetooth M-tech Bt-05 | ESSENTIAL ⚡ |

If your BT-05 was purchased after 2020, it may have switched to Realtek.

Check adapter status:

bluetoothctl
power on
scan on

Use bluetoothctl to pair/trust/connect.

If kernel lacks support for the dongle’s chipset, you may need a firmware file:

For Realtek or Broadcom chipsets, search for linux firmware packages or community drivers; follow distro-specific install instructions.

Notes:

If the driver installed but you can't see the icon: driver bluetooth m-tech bt-05

Q: Is the M-Tech BT-05 compatible with Windows 11? A: Yes, but you may need to install the driver in Windows 8/7 compatibility mode. Right-click the setup.exe > Properties > Compatibility > Run as Windows 8.

Q: Can I use this adapter for a Bluetooth keyboard in BIOS? A: No. Bluetooth dongles require an OS driver to function. For BIOS access, use a wired or 2.4GHz wireless keyboard. If your BT-05 was purchased after 2020, it

Q: Why does my BT-05 only show up as a "USB Serial Converter"? A: This means the driver didn't load correctly. The chip is in a default state. Reinstall the driver following the manual "Have Disk" method above.

Q: Where is the official M-Tech driver download page? A: Unfortunately, M-Tech does not provide a central driver repository. The best source is the included mini CD or trusted generic CSR drivers from MajorGeeks or the GitHub repo csr-bluetooth-4.0-driver. Check adapter status: bluetoothctl power on scan on

Cause: Conflicting drivers from a previous Bluetooth adapter. Fix:

Not officially supported. May not work due to macOS hardware whitelist.

The M-Tech BT-05 is a popular USB Bluetooth 4.0 dongle used to add Bluetooth capability to desktop computers and older laptops. It allows users to connect wireless peripherals such as:

Because it is a budget device, it often does not come with a physical CD driver, or the included mini-CD is unreadable by modern slot-loading drives. This leaves users needing to download the software manually.