I received a galaxy smarttag free in a Samsung promotion, but it doesn't work. I followed the suggestion in "Smart Things" app which said to reset it by opening it, resetting the battery while holding the button, but it didn't make a noise. I tried another CR2032 battery but still nothing.
I have a similar issue. Battery is definitely ok but says connection lost or confirm the connection and I've tried every single way it asks me. Just pressing the button repeatedly seems to get it to connect for a bit longer but then it fails beflre it even gets to 50%. This is hard work for something brand new that you would expect to be seamless. New phone s21 ultra with new accessory that is useless
I had the same issue (no sound when pressing the button on the tag). At first I did the procedure in the app to reinit the tag with no success.
After that I removed the battery all night and after putting the battery again it finally worked. I guess removiy the battery 2 or 3 minutes should do it.