After I upgraded my iPhone, I can only send group text messages. Prior to the upgrade, I would go to setting, message, then turn off group messages. After the upgrade, I don't have a group messages button to turn off ??? I have restored the upgrade in hopes the problem would fix itself.
Sorry to hear that you are having issues with group messaging. Sometimes when software updates are released; features do change. So did the restore work? If not please PM with your name and number and I will continue with troubleshooting. Thank you.