I have a nice new Samsung S21 5G that works fine apart from I am unable to get the RCS service to work using either the Samsung messages or Google Messages app. However if i swap my data to use the second sim which is on O2 then it works fine.
Please can someone help me with if there is a setting that can fix this.
What happens... I try to activate it and the activation fails every time so I cant get to sending a message - when I select chat in Samsung messages it says register... I try and it fails - some people seem to think its a Samsung service failing but the RCS is network level.