When I got my iPhone 4 I did initially just set it up from a backup of my 3GS. However, I've had a few crashes so I decided to start again with a full restore. What I want to do now is restore just my SMS/MMS from a backup (taken from my iPhone 4 before I restored it). I found instructions on how to do this without jailbreaking for the 3G, 3GS etc on the Internet, namely: Navigate to the relevant backup file in ~/Libary » Applications Support » MobileSync » Backup Delete everything except: a) Info.plist b) Manifest.plist c) Status.plist d) 3d0d7e5fb2ce288813306e4d4636395e047a3d28.mddata e) 3d0d7e5fb2ce288813306e4d4636395e047a3d28.mdinfo And restore from the backup. However, I only have one of the 3d0d7e... files, so I tried it with that but when I tried restoring I immediately got a message saying the backup was corrupted. I then tried also including the files Manifest mbdx and Manifest.mbdb from the original backup and the backup completed but the phone rebooted with a failed restore message at the end and my SMS had not restored (though obscurely a single App had been restored). I'm guessing that the structure of the iOS4 restore folder/file is different from the previous versions. Does anyone know what I need to do to restore just my SMS/MMS from an iOS4 backup?