My Nokia recently got restarted, and now when I try to send a group message it wont go through and says that I have to change my settings. I can't find where these text message/ group message settings are. Any help on how to turn group chat back on?
You can turn it on by going to the Messaging app, tapping on the three dots in the bottom right corner, then going to Settings > turn on group messaging. There's also more information on messaging here.