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
    2020-09-08T03:21:03+00:00

    yes, that is normal, but now you can just select upgrade driver, and select v10.0.1.15 and it will replace the current driver and Windows will not update it again.

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  2. Anonymous
    2020-09-08T03:13:52+00:00

    I have updated generic adapter to ar3012 ver 10.0.1.15.

    Just after upgrading windows 8.1 to 10. For 2 days, bluetooth worked flawlessly (can't remember the version or adapter). Also, windows do not updated itself due to metered connection. After 2 days, I have connected unmetered connection and windows update installed some drivers which included bluetooth also. Then, after next boot bluetooth stopped working.

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  3. Anonymous
    2020-09-07T21:34:49+00:00

    Hi Darshan -

    If the BT adapter has failed then it's a hardware issue. You can test this by trying a USB BT adapter such as the one I suggested:

    https://www.amazon.com/ZEXMTE-Bluetooth-Receive...

    https://www.amazon.com/dp/B009ZIILLI?psc=1&...

    You can also try installing a Linux distro or running a Live bootable linux distro from USB to see if it will see the BT:

    https://www.pcsuggest.com/best-linux-live-distro/

    https://www.groovypost.com/howto/dual-boot-wind...

    Try restoring the Bluetooth Support Service:

    https://www.tenforums.com/tutorials/57567-resto...

    See fixes for Bluetooth User Support Service not starting or shutting down:

    https://answers.microsoft.com/en-us/windows/for...

    https://answers.microsoft.com/en-us/windows/for...

    https://answers.microsoft.com/en-us/windows/for...

    If you have not yet, Run System File Checker from Step 10 in this checklist:

    http://answers.microsoft.com/en-us/windows/wiki... and if it fails move to Step 11 to do the Repair Install.

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  4. Anonymous
    2020-09-07T20:36:35+00:00

    Hi ArabindaPal,

    So AR3012 do work after install 10.0.1.15, but fail again after system reboot, right?

    Did you ever try to disable the Windows Update in beginning,

    remove AR3012 drivers completely, let W10 detect it as Generic BT device,

    then install 10.0.1.15 manually? 

    If AR3012 do work after a clean installation of 10.0.1.15 even after reboot,

    then re-enable Windows Update, meanwhile NEVER removing 10.0.1.15,

    even its driver might be automatically or manually upgraded to 10.0.3.x.

    W10 will need 10.0.1.15 installed for AR3012 working,

    even newer drivers might be installed later.

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