Original topic:

Bluetooth Not Working after One UI 7

(Topic created: 05-12-2025 02:36 PM)
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Members_iHEhC9t
Asteroid
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Galaxy S21

Since the update devices cannot connect to my S21 Ultra. I have to unpair the device,  restart my phone and try to pair multiple times before it works just that once. 

I have to repeat this any time I want to connect to that device daily. 

I've read some issues with WhatsApp, but I do not have that app on my phone. 

84 Replies
Reg59
Constellation
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Galaxy S21

Hello
Same issues on my  S23 Ultra and UI7
Temporary solution: I go to the developer options, turn SAP Bluetooth off, then on, and I can reconnect to my Huawei smart scale.
While waiting for a real fix, I haven't found anything better.

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MarkytheSparky
Asteroid
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Galaxy S21
I have the latest update available for my S21 ultra and both bluetooth and wifi have the same issues. Wifi and bluetooth randomly disconnect and are sometimes impossible to reconnect without restarting the phone! I have battery charging and overheating issues since adding AI and whatever else the update **bleep** up. I found a new battery protection two days ago in Settings and once turned off it helped a lot but I still have issues with charging. Samsung has been limiting every new cord and charger within a few months of use for the last 2-3 years. I hate Samsung now, well since the curved screen release years ago. I just ordered a new phone and its NOT a Samsung! Samsung is losing out nowadays because they are acting like Comcast and there are many other great phones available now.
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Eli1212
Constellation
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Galaxy S21

A73 the same issue๐Ÿ˜ญ

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jchanto
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Galaxy S21

I am trying to connect just the bluethod of my car. My old S21 witthout One UI 7 still working and connected, with my new S25, I cannot, I manage to identify that the underligh bluethood process in both system are different. It seems that they are not the same in anyway. There is in deep a malfuntion on the new system because of the underline process responsable for bluethood. This connectivity issue happen with some devices, not with all. 

The best that I manage to identify, is that the car's bluethood is overloaded and restart automatically, this broke the connectivity. There is something in the new One UI7 bluethood process that overload the other device and make it restart it, hence the connection is disrupted. 

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Oz2
Constellation
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Galaxy S21

I have the same issue on my Samsung Galaxy S21+

Bluetooth will not stay on since the update.  I can occasionally pair my Bose headphones, but only for a couple of minutes before Bluetooth turns itself off (had previously worked for YEARS)

Mostly Bluetooth will not turn on at all, and the option to clear data and cache are greyed out.

I've tried all of the suggested options. 
Diagnostic tests intermittently work and fail. 

Has anyone managed to resolve this? 

 

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