This is a re-posting from Microsoft forum, hoping perhaps someone has some experience with the issue here.
On my new Win10 Laptop I am not able to get the appropriate level of Bluetooth device support for my phone. This appears to be due to a lack of drivers for the "Other Devices" that are installed when pairing my phone. On my Windows 7 device with the Broadcom drivers stack the device pairs fine and I can remotely play music from my phone through to my PC and connected audio system. Currently on Windows 10 (1703) when I pair the phone I am not able to do this. Several "other devices" are present in device manager.
The system does not seem to understand how to handle these Bluetooth devices.
I've tried updating the drivers, there's nothing that pulls down from Windows Update.
I've tried several iterations of the Intel Bluetooth driver to no avail.
The Broadcom drivers are no longer available from the Broadcom site, they indicate that the drivers are available from Microsoft update, I have had no such luck.
Lenovo support is useless and they want to charge me (for my brand new laptop!) a "nominal" software support fee to troubleshoot my issue, or I am free to contact Microsoft support.
I feel this issue is due to the use of a Microsoft Bluetooth stack and not the "classic" Broadcom stack, but I'm not able to force an install of the Broadcom stack on Windows 10 because the software no longer exists on the manufacturer's website. Is there any way to force a Broadcom driver rather than the Microsoft/Intel conglomeration that appears to be the default?
-------- Contcted Lenovo again -------
I just spent a few hours on the phone with Lenovo, no change in the result. They did create a software case but that team isn't open until tomorrow. For my own troubleshooting I did install an IOGear USB Dongle (GBU521) I had connected to my desktop and I was able to pair the phone an at least get audio connectivity. It wasn't the "smooth" windows connected experience that I could do using the connect panel from the notification menu, but instead opening the control panel and browsing this path: Hardware and Sound\Devices and Printers. From there I could "control" my phone from a context menu which popped up a management window and i could click "connect" under Audio. Very cumbersome, but it worked.
A key differentiation between the pairings, on the phone when I paired to the Intel BT device there were no services listed that i could toggle on/off. After pairing with the IOGear (Broadcom) I had two services i could toggle, Media Audio and Input Control.