Thinkpads Forum

About a year ago I removed the buggy Widcom BT stack and switched to the "default" MS stack which worked much better - at least for me, i.e. for synchronizing my PDA and my cell phone, which had never properly worked with the Widcom stack.

Alas, however, the MS stack only comes with a few minimalistic profiles. I recently bought myself a BT headphone and thus would like to use the audio profile and some of the other features that the Widcom stack offers, so I wanted to give the Widcom stack another try - hoping that in the meantime they might have fixed some of the issues I had earlier.

But how does one switch these BT stacks? I simply installed the IBM/Lenovo Bluetooth software but the result was, that I now have no working BT device at all! Bravo, Lenovo! Clap-clap-clap!

Directly after the installation I ended up having two bluetooth icons in control panel, both of which showed "no device detected". I managed to disable the MS control panel as well as the MS tray icon using msconfig.exe but that didn't convince their Widcom counterparts that they should now take over and so the Widcom control panel applet still shows "BT device is not detected" and the Widcom tray icon does not show up at all.

How does one properly remove or disable one BT stack and installs/enables the other?

Michael

You should have uninstalled the Microsoft stack first, and rebooted your machine then , and only then installed the IBM stack. I would suggest going to control panel and uninstalling the Thinkpad Bluetooth software, and then the Microsoft software, rebooting and then installing the IBM software. You'll need to turn Bluetooth back on by using Fn F5. The device should be detected, a number of times, and about 4 or 5 different drivers installed.

Good luck.

DAH has a good point; in addition, when the Microsoft Driver wizard installs the drivers right after the Bluetooth install, it is doing so with the IBM provided drivers and not the Microsoft default ones. As DAH said, you should see several New Hardware Wizards pop-up after each other installing various services. The bluetooth icon in the system tray will be fairly large in comparison to the default Microsoft based one.

DAH wrote:You should have uninstalled the Microsoft stack first...

And how do I uninstall that stack? It doesn't show up in "Add or Remove Programs" (neither under the "normal" programs nor under windows components).

I tried to uninstall the driver in device manager but next time I reboot it was there again.

Michael

I've got a similar problem... i'm trying to switch from the widcom stack to the microsoft one... how do you know which drivers you are installing and where do you find the microsoft ones?

-edit-
I've found the solution to my problem... the c:\%windir%\inf\bth*.* files had been deleted on my computer and i had to copy them from the CD.