Open Device Manager, right-click the Bluetooth Module -> Properties -> Power Management . Uncheck "Allow the computer to turn off this device to save power."
Check and select Windows 7 or Windows 8 . Check Run this program as an administrator . Click Apply , then OK , and run the installer. Restart your computer. Method 2: Manual Installation via Device Manager (INF File)
If your Bluetooth completely vanishes when waking up your PC:
Bluetooth 4.0 + HS (High Speed) / Wi-Fi 802.11 b/g/n Bluetooth Module Atheros Ar5bbu12 Driver
The Complete Guide to the Atheros AR5BBU12 Bluetooth Module Driver
Generic Qualcomm Atheros AR3011 Driver (v10.0.0.300 or newer) Manual installation via Windows 10 Compatibility Mode Linux (Ubuntu/Mint) Native Support Included in the Linux Kernel ( ath3k firmware module)
: Older drivers (often Windows 7 compatible) can be found via the Acer Global Download center. For Windows 10 or 11, it is best to contact Acer Support directly. Open Device Manager, right-click the Bluetooth Module ->
Atheros AR5BBU12 is a Bluetooth 4.0 + HS (High Speed) module often found in older laptops from manufacturers like Acer and Lenovo. It is frequently associated with the Qualcomm Atheros AR3012 DeviceHunt Driver Specifications & Compatibility Hardware ID : The typical Hardware ID for this module is USB\VID_0489&PID_E02C Technology
Windows will locate the .inf configuration file and install the driver. Restart your computer. Troubleshooting Common AR5BBU12 Issues
The Atheros AR5BBU12 is a half-mini PCIe card. It typically combines an AR9285 Wi-Fi chip and an AR3011 Bluetooth chip onto a single circuit board. Click Apply , then OK , and run the installer
Windows 10 and 11 often fail to install the Bluetooth driver automatically for this legacy hardware. Follow these steps to install it manually. Step 1: Identify the Hardware IDs
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"