How does Apple 6 save short messages?

Press the Menu key in Info, select Settings, and then select Settings in Info to pull the Settings page to the bottom. At this time you will see that there are four options in the backup settings; Export SMS: directly backup SMS to SD card; Import SMS: import SMS backed up before directly from SD card; You can back up the data of SMS and MMS to SD card; Resuming SMS/MMS data backup requires restarting the mobile phone.

How to back up SMS on iPhone:

1. Because the cellular network is unstable, we'd better back it up in a reliable WiFi environment.

2. Open Settings and click "Apple ID, iCloud, iTunes and App Store" at the top.

3. click iCloud.

4. Pull down to find "iCloud Cloud Backup" and open it.

5. Just turn on the "iCloud Cloud Backup" function.