How to Back Up iMessages on iPhone or iPad

Using iTunes

1. Plug your iPhone or iPad into your computer. You can use your charging USB cable to plug your phone or tablet into your computer.
2. 
   Open iTunes on your computer. The iTunes icon looks like a musical note on a white button. You can find it on your Start menu on Windows, or in your Applications folder on Mac.
3. 
   Click the iPhone or iPad icon on the top-left. You'll see a tiny icon below the Play button in the upper-left corner of iTunes when your iPhone or iPad is plugged in. It will open your iPhone or iPad's settings.
4. 
   Select This Computer in the Backups section. You can find it under the "Automatically Back Up" heading on the Summary page.

   1. When this option is selected, your backups are saved and stored locally on your computer.
   2. If you don't see the Backups section, click the Summary tab at the top of the left navigation panel.
5. 
   Click the Back Up Now button. This button is under the "Manually Back Up and Restore" heading in the Backups section. It will save a complete backup of your iPhone or iPad to your computer.

   1. Your backup will include everything on your iPhone or iPad, including all the messages in the Messages app. You can restore your backup anytime.