Windows 10: Qualcomm Atheros QCA9377 Bluetooth no longer working

Today 03/14/2023, Qualcomm Atheros QC9377 Bluetooth ceased to work. I'm using a Lenovo laptop, Windows 11Its driver status:This device is not working properly because Windows cannot load the drivers required for this device. Code 31 {Operation Failed} The requested operation was unsuccessful.

:)

 

Bluetooth Stopped Working in Windows 10 (Qualcomm Atheros QCA9377)

I have an Asus T102HA which has an integrated Qualcomm Atheros QCA9377 WiFi+Bluetooth adapter. The Bluetooth suddenly stopped working this morning and as a result the wireless mouse no longer works (this is how I knew Bluetooth stopped as I was using the machine at the time).

I checked in Device Manager and the Bluetooth devices were greyed out though they were not disabled (had to enable 'Show hidden devices' in Device Manager to see the Bluetooth section in the device tree).

I proceeded to uninstall and reinstall the Atheros QCA9377 driver as available from the Asus website (https://www.asus.com/uk/support/Download/3/919/0/1/EKnJ4vWdmuN3xLti/45/). Upon reinstalling the driver Bluetooth is no longer listed anywhere in Device Manager.

I have run the "Scan for hardware changes" in Device Manager but this does not detect anything new.

It is as if the Bluetooth device no longer exists on the system. However, WiFi is working fine which would suggest that the device itself is presumably ok and still present.

The only possibly suspicious thing to note in Device Manager is a device under:

I have no USB devices connected to the system so it is unclear what this unknown USB device is above - perhaps it could be the Bluetooth adapter but I don't seem to be able to get that unknown device to find a driver update online.

The Windows 'Bluetooth Support Service' is running and can start/stop successfully - it is also set to Automatic startup.

Airplane mode is not enabled and toggling it on/off has no effect on the Bluetooth situation, though it does turn WiFi on/off as it should.

I am out of options that I know of to troubleshoot this as Bluetooth isn't showing up no matter what I do.

How can I troubleshoot further and get the Bluetooth adapter reinstalled properly?

 

Qualcomm Atheros QCA9377 Wireless adapter

Thanks JuanMoreno25,

I have carried out the process that you have described, however I carry this process out on a weekly basis as the fault comes up that the
Qualcomm Atheros QCA9377 Wireless adapter is not recognised.

I have updated the Qualcomm Atheros QCA9377 Wireless adapter (microsoft)

Is there anything else that I should be updating?

Thanks

 

Qualcomm Atheros QCA9377 Wireless adapter

Hi,

I have an Acer Aspire F15

I need to keep updating the Qualcomm Atheros QCA9377 Wireless adapter.

Are there any fixes for this to stop this happening

Thanks

Andy