Jun 28, 2009. Windows 7 came with no A2DP support and MS asked bluetooth hardware manufacturer to add this feature in driver upgrade. Safari Download Pdf As Html. All bluetooth hardware on laptop where most of the time we need A2DP are made by Broadcomm (widcomm software), Toshiba or CSR. The last 2 manufacturer seem to have. How to install CSR Bluetooth device drivers and enable Bluetooth headset profile (HSP) on Microsoft Windows 7 / Vista / Server 2008 32- and 64-bit (x86 x64).

Hi rdcons1, I am afraid to say “Yes”. Your SONY DR-BT21G stereo Bluetooth headset not working on Windows 7 is because the device is not compatible with Windows 7 or need the device driver for Windows 7 to make it works. First, I have checked the issue on and found that the device is not listed on the compatible table. Therefore, yours Sony Bluetooth headset may not be compatible with Windows 7. In addition, after searching on, I did not find any information that indicates the headset is compatible with Windows 7 or there is driver for Windows 7. As you mentioned that the headset works perfectly on Windows Vista, you may have the driver for the headset for Windows Vista.