If you can't update or restore your iPhone, iPad, or iPod touch. You can put your iOS device in recovery mode and then restore it with iTunes. In these situations, you might need to use recovery mode to restore your device: 1  iTunes doesn't recognize your device or says it's in recovery mode.
Text messaging, or texting, is the act of composing and sending brief, electronic messages between two or more mobile phones, or fixed or portable devices over a phone network.
SMS Messages. 1  SMS stands for Short Message Service. This is what is commonly known as a text message. 2  A SMS message is 160 characters. 3  If you want to stop SMS messages or offers, type STOP and send to sender.