Qualcomm Atheros AR3012 Bluetooth not working in Windows 10

Anonymous

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

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Anonymous

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

remove AR3012 & its drivers completely from 20H1, later let 20H1 detect it as Generic Bluetooth Radio.
download Qualcomm driver v10.0.1.15 from Microsoft Catalog website, install this driver via driver upgrade.
after v10.0.1.15 being installed, you might see additional device named in "Bluetooth LE" as the one in the Kirill's figure.
try to connect any BT device you couldn't connect after upgrading to 20H1, make sure the AR3012 really WORKS.
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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206 additional answers

Anonymous

2020-07-18T03:33:35+00:00

ok, tested, installed 10.0.1.15 from scratch and BT works instantly now :D
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Anonymous

2020-07-17T23:54:49+00:00

I've not tested exactly that specific version, but I've tested few other 10.x.x.x drivers and they don't work when installed from scratch, anyway I'll check later with that specific version you've mentioned to check what happens.
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Anonymous

2020-07-17T19:30:57+00:00

for Qualcomm Atheros AR3012 Bluetooth the ~~only drivers~~ versions that really works in Windows 10 are version 8.0.1.305 & 8.0.1.358which are the last driver versions for Windows 7, 8, 8.1.

Hi MELERIX,

Please read my reply above yours, 8.0.1.305 & 8.0.1.358 isn't the ONLY working driver for AR3012 on W10. Most driver elder than v10.0.1.15 (included) can make AR3012 working on W10.

They will active an additional device "Microsoft Bluetooth LE". I guess it's why causes AR3012 out of order.

Install & keep any of them (v10.0.1.15 is suggested) , then update & cover them with newer 10.0.3.x, just as what I wrote.

All v10.x can be downloaded from Microsoft Update Catalog (as the links in my reply for AMD64 ONLY, x86 versions also available by searching).

Users won't need to turn off driver update to keep AR3012 working.
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Anonymous

2020-07-08T21:01:37+00:00

for some reason Windows 10 installs driver version 10.0.3.21 but that version does not work.

for Qualcomm Atheros AR3012 Bluetooth the only drivers versions that really works in Windows 10 are version 8.0.1.305 & 8.0.1.358which are the last driver versions for Windows 7, 8, 8.1.
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