Download.known to work under Microsoft Bluetooth stack with Bluetooth Driver Installer Device; USB VID_03EE PID Silicon Wave / Asia Pacific Microsystems.Windows 7 - Bluetooth device driver is no longer recognized or device won't (Cambridge Silicon Radio Limited) Windows / Windows 7 / Devices drivers.Update your computer's drivers using.

Make sure the Bluetooth device shows up under 'Devices and Printers' in Windows 7. If it shows up under the Bluetooth icon for those who show it in their Windows Control Panel, even though it indicates all services are operational, it will still NOT work. It needs to show under 'Devices and Printers.' Even then, when you RIGHT-CLICK on the Bluetooth Device icon, and click on 'Properties' to show a 'Services' tab, do NOT click the 'Headset' option. Doing this will create a 'Trouble-shooting' yellow warning triangle on your Bluetooth icon, and your device will NOT work. Apparently, 'Headphones' are NOT the same as a 'Headset' as far as Windows 7 is concerned. Leave it unchecked and then assign your choice of listening/microphone device as normal under the Sound icon where your Bluetooth device should show if it is a headphones/microphone device.

I joined this forum JUST to say THANK YOU! - My PH-BTH3 Bluetooth Headphones trouble began with a driver update that 3DP (a driver finder program that is free but sometimes buggy). It found a new Toshiba Bluetooth Driver Stack update. I thought since it found many, many other drivers I needed and it fixed many issues I had in the past. So I was shocked when the Toshiba driver made a horrible popping in and out of sound but loaded the headphones fine. Sadly my original pairing of the headphones using the Windows update drivers had worked fine since day one. I simply went to 'show all devices' and then selected 'Add Bluetooth Device' and everything just worked!

So of course I needed to rollback and get rid of the Toshiba update (which should have been hassle free). I uninstalled and rebooted and the horror began! My Bluetooth dongle is the CSR 8510 A10 (CSR8510A10).

It was now showing the PH-BTH3 headphones as paired (within the CSR 8510 driver settings as well as all bluetooth driver references. The Toshiba driver had altered the way Windows loaded my drivers regardless of how I installed/uninstalled the Toshiba driver as well as trying the broadcom and Intel drivers. So now the headphones were not paired (but reboot after reboot there the headphones appeared listed in Windows even though I had already uninstalled, unpaired.

In fact I searched for over 2 months online for help. I never received a driver for my headphones as others have mentioned. So I thought there never was a driver for the PH-BTH3's as my head hones were new off Amazon this last Christmas (and most devices shipped like this generally assume you will update via Windows update).

So to resolve my 'newly created issue' I knew I needed to drivers entries and that took so much time. Windows seems to have a hard time releasing devices in general but with Bluetooth it is especially sticky. I had over 16 entries in the registry alone. In many folders within REGEDIT I was stuck having to take ownership of the folders, then I learned some folders are 'placeholders' and cannot be deleted but you need to delete each entry in the folder that it allows (all but the top most entry will be deleted). If you miss just one of the driver references it will fail again on reboot and you will have to continue your search and deleting process. I had to go to Device Manager and change 'View Settings' to 'Show Hidden Devices' and then go into each hardware item and delete anything related to Bluetooth (I was amazed at all the entries including several 'unknown devices') and my headphones appearing in the system folder. • - I rebooted and left the Bluetooth dongle unplugged.