Unfortunately, I have experienced the same issues. At the same time; after the update. I can't use my mouse or my keyboard. Very painful. After rebooting it will work for less than five minutes. Classic MS update.
Bluetooth Issues Since Surface Updates - 5 August 2021
The Bluetooth on my Surface Pro (5th Gen) has not been working properly since the Surface Firmware Updates this morning. I have to restart to get it to work and then it only works properly for about 5 minutes. I have tried rolling back and reinstalling the Marvell driver. Also the Bluetooth troubleshooter doesn’t fix it. Running that troubleshooter causes Bluetooth to completely stop working. Will you please fix this urgently as it is a major issue for me?
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Surface | Surface Pro | Network
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Anonymous
2021-08-16T14:28:41+00:00 -
Anonymous
2021-08-16T14:36:10+00:00 Hello,
I use a SurfacePro (5th Gen). I am having exactly the same issue after the Windows update at the beginning of the month. After a little while, one after the other BT devices start disconnecting, starting from my mouse, keyboard and then audio devices. I tried all possible solutions from Surface Diagnotic Toolkit to checking for Windows Updates to reinstalling manually drivers. Nothing has worked out for more than a week! After a few minutes, capriciously the BT devices stop working, and then the bluetooth button disappears.
I am reinstating it to urge Microsoft to resolve this ASAP.
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Anonymous
2021-08-16T14:39:45+00:00 Hi Guys,
I had same issue here, with China MS support help, it is temporary solved, it caused by upgrade patch KB5004331, you need restore it then bluetooth works correctly.
Hope this helpful.
Cheers
Jerry
@Jerry
I did not find that either in my update history. Could there be an equivalent of this for other machines? For instance, I got KB5005033 and KB5004945.
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Anonymous
2021-08-16T14:56:36+00:00 Can you (any everyone else impacted) use the Feedback Hub App to file a problem report on this with as much detail as possible, especially the possible link to audio devices being the trigger for the issue? The engineers won't scrape the forum for bugs and info..
Thanks Barb. I did that as well. So far no response. I really hope they find a solution soon!
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Anonymous
2021-08-16T15:33:03+00:00 For the record, I gave feedback too.
I rebooted yesterday and then left the computer for other things. Overnight, the Bluetooth functionality stayed on so I unplugged my wired mouse and started using my BT mouse again. I also connected my iPhone and Surface Book 2 to my wireless Aftershokz Opencommand headset. About 5 minutes later, the BT died.
I know there is a log somewhere to see what happens when. It's highly technical and I forget how to access it. But I'm sure the MS engineers know and I'd be happy to send them my log if they want it.