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

Locked Question. This question was migrated from the Microsoft Support Community. You can vote on whether it's helpful, but you can't add comments or replies or follow the question.

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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
    2020-09-07T15:21:55+00:00

    I suggest you click on Search for Updated Drivers on the Windows Update option as shown in the screenshot you have attached and let me know the results.

    Regards

    Shuaib

    Independent Advisor

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  2. Anonymous
    2020-09-07T09:28:22+00:00

    It's telling that drivers are already installed.

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  3. Anonymous
    2020-09-07T08:55:47+00:00

    I have a laptop SAMSUNG NOTEBOOK NP300

    My Bluetooth device is active, No antivirus is installed except Windows Defender.

    Problem:

    Whenever I try to pair with a device it kept on searching in ADD A DEVICE. 

    I've tried troubleshooting and try to update the driver from the device manager everything seems normal and updated.

    The following drivers are installed in Device Manager

    1. Bluetooth Device (RFCOMM Protocol TDI)
    2. Microsoft Bluetooth Enumerator
    3. Qualcomm Atheros AR3012 Bluetooth 4.0

    Do I have to install any more driver or anything else or should I try any different setting to pair or connect with other devices?

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  4. Anonymous
    2020-09-07T08:24:07+00:00

    Hi Greg,

    Thanks for the prompt and comprehensive answer.  

    I have looked into all the options and tried most of them, below are my observations:

    • Going back to system restore would be very difficult as I don't actually know when the problem started. It might have been 3 years ago when I updated my pc with Windows 10 or might have been later. Restoring the system to all those points would be very tedious
    • I have tried updating the drivers from both PC maker and BT adapter's support pages but that doesn't seem to have solved the issue
    • I have tried a few of the links posted above and most of them described updating the drivers and rebooting the system which I have did multiple times

    It seems the issue is related to "Bluetooth User Support Service_5679c" not starting up (or shutting down immediately after starting up). Is there any other way to fix this? Also, regarding point (8) above, how do I know if BT adapter has failed or it's a hardware issue?

    Thanks,

    Darshan

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