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.
A multimedia message is message sent or received on your mobile device that contains a picture, video or other multimedia file attached. Group messages are also considered multimedia messages. Multimedia messaging is also commonly referred to as MMS or picture and video messaging.