Hi!
We're sorry to hear that you are experiencing issues with your Galaxy phone.
In this case, I recommend that you try resetting the network settings on the phone. This resets both network and bluetooth. You do this in settings > General management > Reset network settings. When you do this, the phone will forget all your wifi and bluetooth devices. After this, you restart the phone and try to connect your bluetooth device again and see if it works better after this.
Should the problem persist, I recommend that you create an error report and send it to us. This way our technicians can check the logs and diagnostics to try to figure out what the problem might be.
You can create a error report like this: Samsung Members > Support > Error report.
I hope this solves the problem for you.
/Daniel
