Bluetooth Not Working after One UI 7

[Members_iHEhC9t]

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. 

[Members_xLm2fk5]

Seen this suggestion. Been done. This does not solve and Samsung knows it. Please resolve your OS update as this happened previously as well and the company is aware. We are in a bait and hook situation where Android does not want this to be bigger than it is. Fix soon or I am sure it will be...

[drakiras]

Just got a security update (AT&T is always behind) and, oh, yeah, no fix for the bluetooth. I still can't get my watch to connect, still can't get one pair of buds to connect at all, and the other pair of buds is audio only. Thanks Samsung, now I can't talk while I'm driving and I drive for a living! 👏 Seriously this needs to be acknowledged and fixed.

[Samsung_yqQLuPd]

I am also experiencing the same result. I have tried going to the park, away from other with only my phone and headphones. After several attempts, if they connect, it only works until I turn them off. 

[RimJobSteve]

I got a fix talking to Samsung support. It has been working for a couple days now so seems to be permanent. Fingers crossed. The steps:

1. Go to Settings -> General Management -> Reset -> Reset Network Setting. 
   • This will remove all bluetooth devices and wifi networks, but nothing else. 
2. Turn device off
3. Hold Up Volume and Power buttons until the Android logo appears. This boots to the Recovery Menu.
4. Select "Wipe cache partition."
   • Use the volume up/down buttons to scroll and the power key to select. 
5. After complete, select "Reboot system."

Doing the network reset always made my work for a little bit, but then would fail again. Clearing the cache seems to have made the fix stick. 

[Members_iHEhC9t]

I think the latest update fixed it. I didn't have to reset bluetooth settings today. Give it a try folks

[MarkytheSparky]

I have the latest update available for my S21 ultra and both bluetooth and wifi have the same issues. I had battery charging and overheating issues due to AI and whatever else the update **bleep** up. I found a new battery protection in Settings and once turned off it helped a lot but I still have issues with charging. Samsung keeps limiting every new cord and charger within a few months of use.

[woozooo]

Hello, I'm a developer based in South Korea.
On Samsung devices running One UI 7.0 / Android 15, Bluetooth scanning fails to operate continuously, which is critically affecting our application.

Despite multiple inquiries submitted to Samsung's MX Division in Korea, I have yet to receive any formal response or resolution.
This lack of communication is deeply disappointing and unprofessional, especially given the impact on developers relying on Samsung platforms.

[Rowann323]

Just installed new update - my phone has connected to my earbuds, watch and car without any issues!!! Thank you Samsung!

[pseudoKen]

I installed that new update-to-the-update, and the bluetooth issues have improved. Not 100% but still much better than after the original UI 7 update.

[wenhuanorman]

I've installed the latest system update

the problem have been solved "a little bit"

however, the bluetooth still turned off occasionally while I'm using my phone