Please follow the below mentioned steps in order to resolve the issue:
> Perform reset network setting (Setting> General Management> Reset>Reset setting).
> Check with any another Bluetooth device
> Perform Interactive checks through Samsung Members app (Samsung Member> Get Help> Interactive checks->Bluetooth).
> Go to the settings>>apps>>Bluetooth>>storage>>do clear cache.
For further assistance, register your concern in the Samsung members app (Open Samsung members app>click on “+“icon>send feedback>Error report/ Ask Questions).
Team Samsung Members