When you plug glasses into a Samsung phone, Samsung DeX can take over the display and show a desktop instead of captions. Turn it off before you set up your glasses.
- Open Settings → Connected devices → Samsung DeX.
- Turn off Auto start when HDMI is connected. On some models the setting is under screen mirroring instead.
- Pull down the quick settings panel from the top of the screen, swipe to its second page and make sure DeX is off (grey, not blue).
- Restart the phone. You only need to do this once.
- Plug in the glasses again.