I had every Samsung Galaxy S And now I just got S21 ultra I keep getting on my text (((subject no subject))) I see that this been in issue for a while If this cannot be fixed please let me know I will return the phone and switch to iPhone....thank you
Solved! Go to Solution.
Also, you can contact your carrier to get help.
Generally, you need to go to Settings, Software Update and click 1 Update Profile, 2 Update PRL and then you Restart.
This is a SMS server issue from your carrier and not really Samsung.
Apple Imessages are not SMS but a web service hence they don't depend from the carrier.