What phone do you have?
What plan are you on?
Does your plan include data, or just talk & text?
I have lost my talk to text ability on both the phone’s default SMS app (Messaging version 5.1-14), and Messenger. The little microphone icon has changed on both apps, as well. The little mike icon is now hollow in the middle, if that makes any sense? When I press it in either app, NOTHING happens. If I have an unread SMS, the SMS icon at the top of my Home screen blinks off when I press the microphone icon on my text app. Just now happened. I did nothing. I powered down and back up, no difference.