Texts messages not sending after iPhone update?

I updated my phone two days ago. Last night my phone stopped sending & receiving texts. I was able to text one person, but everyone else I couldn't. I wasn't even getting a notification that my texts didn't send. What should I do? (I tried turning off iMessage & shutting off my phone, then turning it back on, but that didn't help).

Mine either. You got 5.go wake steve up tell him to get on his jobs;-)