To install or update the Atheros AR5BBU12 Bluetooth module driver, you should prioritize official manufacturer support pages, as Qualcomm (Atheros) does not provide direct consumer downloads. 1. Identify Your Official Support Source
No. It is Bluetooth 2.1+EDR or, in some revisions, Bluetooth 3.0+HS. It does not support Bluetooth Low Energy (BLE). Do not try to force BLE drivers. Bluetooth Module Atheros Ar5bbu12 Driver
To update the Atheros AR5BBU12 driver:
Manual Install: If you have a .zip or .inf file, right-click the device in Device Manager, select Update driver > Browse my computer for drivers, and point it to the unzipped folder. To install or update the Atheros AR5BBU12 Bluetooth