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.
Text Message. A text message, which is also known as SMS, is the text messaging component built in to any modern phone. It allows the exchange of text messages between mobile devices or fixed devices that have the ability through a standard set of protocols. The history of SMS lies in memo pagers and then it was standardized as a part of the Global System for Mobile Communication; what we know as GSM; in 1985.