Bluetooth Module Atheros Ar5bbu12 Driver -

Go to the tab, and select Hardware Ids from the drop-down menu.

Older Atheros combo chips are notorious for dropping connections or failing to start after Windows updates. Here is how to fix the most common issues. Code 10 / Code 43: "This device cannot start"

Visit the Acer Support Portal, enter your laptop model (e.g., Aspire One 722), and look for the "Bluetooth Driver (Atheros)" package under the Windows 7 or Windows 8 drop-down menus. Bluetooth Module Atheros Ar5bbu12 Driver

Look for USB\VID_13D3&PID_3304 or USB\VID_0489&PID_E02C in Device Manager.

Older drivers may lack the digital signatures required by modern 64-bit operating systems. Go to the tab, and select Hardware Ids

Modern Windows blocks unsigned drivers. Since many AR5BBU12 drivers are community-signed:

If you downloaded an official package from ASUS, Acer, or HP: Extract the downloaded ZIP folder. Code 10 / Code 43: "This device cannot

This is the most reliable "general" source. Searching for "Qualcomm Atheros Bluetooth" in the Microsoft Update Catalog

The AR5BBU12 was designed during the Windows 7 and Windows 8 eras. It may drop connections or fail to pair with modern Bluetooth 5.0+ peripherals on newer operating systems.