Originally Posted by WAWood8
The BT driver on your PC is NOT for your phone; instead, it is for the BT feature on your PC.
I appreciate the response, but yes, I know that. I'm an IT PC support person myself so I know exactly how the drivers work. But sometimes a separate driver can be required on top of that for the device itself. Take USB for example. You have drivers for the USB controller on the PC, and many devices are recognized by the computer without extra drivers (flash drives, hard drives, etc.), but there are still separate USB drivers for the Galaxy S III phone itself to be recognized properly once it's plugged in to the USB port. I didn't know for sure, but I thought it could be the same thing with Bluetooth. It made sense that Windows had built in support for my old Windows Mobile phone (all Microsoft) but might not have built-in drivers for other devices.
Originally Posted by silentwitness
Can i ask why you need to connect the phone to the pc via bluetooth? I mean what exactly are you trying to do?
Mostly I want PAN for teathering, and then file browsing. I know there are other ways to do both of these things, but I find it convenient do over Bluetooth. (If I'm copying a large amount of data, then I'll dig out the USB cable, but if I just need a quick copy, it's easier to do via Bluetooth.)
All that said...
After several more hours and a few more searches of various different combinations of terms (after the several hours I spent searching and trying several suggested solutions I had found in various searches before I posted this original question) I finally got it working. Ultimately it was a driver issue with the drivers for the Bluetooth on the computer, but there was more to it that also made it more complicated to figure out.
If anyone reading this wants more detail on what I figured out, read on. Otherwise you can probably skip the rest of this.
First, I STILL SEE the unknown "Bluetooth Peripheral Device" items (I actually see 3 of them) in Device Manager, but it works in general even with that. (I never found any drivers specific for the Galaxy S III). So I just had to learn that if everything else worked per the next two issues, then just let these unknown devices go.
Secondly, it essentially ended up being a driver issue with the Bluetooth drivers for my computer, but figuring that out wasn't as easy as it sounds. I had tried 2 different computers with the same result on both of them originally (I got the unknown Bluetooth Peripheral Device items with nothing else). The manufacturer of the computers (HP) did not have any newer drivers for the two models of computer posted on their web site. (Two different models, but both HP computers.) I had tried installing the generic WIDCOMM drivers directly from Broadcom (the HP laptops do have Broadcom Bluetooth hardware) based on one search result, but it would not instal on the HP laptops. BUT based on a suggestion I found in another search, I looked for Bluetooth drivers for one of the latest models of HP laptops, found a much more current one there, and just tried it on my 2 laptops. Sure enough that driver installed and worked. I was then able to pair the phone and, while I still got the unknown generic "Bluetooth Peripheral Device" items, I now also got other valid Bluetooth profile devices (hands free, bluetooth audio, Object push, etc.). BUT I didn't get ALL the profiles that I though I should, which leads to the next paragraph.
Lastly, apparently the Galaxy S III doesn't have a few Bluetooth profiles built in to it by itself. I was missing PAN (for Bluetooth teathering) and file browsing. I already have a PAN tehering app, but I didn't realize I had to actually start it up before the phone would advertise the PAN profile to the computer (my old Windows Mobile phone just always advertised all of it's Bluetooth profiles whether they were currently turned on or not). Then, after more searching I found that apparently the SIII (and maybe all Android phones?) doesn't have any Bluetooth file browsing capability built in at all, and I had to download an app to enable that, so I got "Bluetooth File Transfer" by Medieval Software off of the Play store.