My s20 ultra has developed an issue with bluetooth lately. It disconnects from any device (speaker, watch, car, etc) and turns the bluetooth off. Won't let me turn it back on either unless it feels like it. Reboots don't help. Resetting network settings doesn't help. Restore doesn't help. Anyone else have this issue? Sometimes, the bluetooth works totally fine, but it's rare.
If the symptom is still present while in safe mode I recommend having your device evaluated by a Samsung authorized technician. You may take your device to your local UbreakIfix, they can usually have your device back to you within the same day
Just got back from uBreakiFix. They attempted a software update and that didn't help. They told me to call Samsung. What annoys me is that Samsung sent me to them, and now I have to go back to Samsung.