Use iCloud for fast backup: Simple set-up and restore from old iPhone's iCloud backup. The process takes about 15 minutes.

Avoid usage of the iPhone at any cost. Avoid taking new photos or downloading large files, since new data can overwrite deleted items. Open Messages and check Trash. Recover anything you find there.

Jeff Carlson writes about mobile technology for CNET. He is also the author of dozens of how-to books covering a wide spectrum ranging from Apple devices and cameras to photo editing software and ...