I cannot send or receive SMS/MMS texts on my iPhone 8 or iPhone 7 since the last update. HELP!
Ever since the last IOS update IOS 11.1.1 neither my iPhone 7+ nor my iPhone 8+ can send or receive SMS text messages. I get Message failure messages. I can send iMessages - but cannot message non iPhone users. I have tried every fix I can find online - please HELP!