Qualcomm Atheros AR3012 Bluetooth not working in Windows 10

Anonymous
2016-07-18T04:46:58+00:00

Qualcomm Athereos AR3012 Bluetooth disabled by Windows 10  need driver or replacement hardware to look for

Windows for home | Windows 10 | Devices and drivers

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Anonymous
2020-06-19T20:24:49+00:00

Here is how I made the AR3012 working again on Windows 10 20H1.

  1. remove AR3012 & its drivers completely from 20H1, later let 20H1 detect it as Generic Bluetooth Radio.
  2. download Qualcomm driver v10.0.1.15 from Microsoft Catalog website, install this driver via driver upgrade.
  3. after v10.0.1.15 being installed, you might see additional device named in "Bluetooth LE" as the one in the Kirill's figure.
  4. try to connect any BT device you couldn't connect after upgrading to 20H1, make sure the AR3012 really WORKS.
  5. then download any Qualcomm driver v10.0.3.x (as Kirill mentioned, the newest one is v10.0.3.22, or let Windows Update do it later), upgrade  the driver of AR3012 again with this one.

Notice: NEVER uninstall the v10.0.1.15 while/after upgrading to v10.0.3.x, or the AR3012 will fail again after reboot.

Microsoft Generic Bluetooth Driver -> Qualcomm BT driver v10.0.1.15 -> Qualcomm BT driver v10.0.3.x,

if you did followed the steps, your AR3012 should be working as usual, even after reboot. 

Qualcomm Atheros Communications - Bluetooth - 10.0.1.15 (x64)

Qualcomm Atheros Communications - Bluetooth - 10.0.3.22 (x64)

I guess the "Bluetooth LE" is the critical point of this issue.

(I DID hate the crappy W10...... what's M$ doing now? let users recall how windows unstable in 1990s? )

NOTE by MELERIX: by the way, as it is an older driver, it does not support the new Windows 10 shutdown mode called fast startup*, so every time you shut down Windows and then restart it, the device appears with an error, so you have to* disable the fast startup of Windows 10*, in the power options of the control panel.*

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  1. Anonymous
    2019-11-13T06:38:07+00:00

    I have the same on a laptop on an Intel card.

    device manager does not see any bluetooth device although it is enabled in uefi.

    I withdrew the update and bluetooth appeared again.

    It's probably a tradition that there is no update without breaking something...

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  2. Greg Carmack 24,780 Reputation points Volunteer Moderator
    2019-10-30T18:43:35+00:00

    Thanks for reporting back. 

    I will  add trying older drivers as well as the new ones from PC or Adapter maker's Support Downloads web page to the steps I give for bluetooth, so others can benefit.

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  3. Anonymous
    2019-10-30T14:46:46+00:00

    I've downloaded 21.05.2015 10.0.1.0 version of the bluetooth driver from this link and it's working fine now. The old ones always better...

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  4. Greg Carmack 24,780 Reputation points Volunteer Moderator
    2019-10-30T06:10:11+00:00

    Batuhan, the Atheros drivers may not be compatible with 1909, which is why I suggested trying an inexpensive USB nano BT adapter until driver is sorted out. 

    Auto driver Update utilities on new versions are not a good idea. 

    Qualcomm no longer pushes new drivers for Atheros, only old ones.  Check the Atheros site for AR3012 drivers as well as the PC or Motherboard maker.  Worth a shot, not likely though.

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