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.
Picture messaging. Picture messaging (MMS) is a service that allows you to send and receive messages with multimedia content, not necessarily just text. Picture messaging lets you send or receive messages containing pictures, video, text, audio, or a combination. Go to Devices to learn how to send picture messages.