Like any Apple products, the iPhone "just works"as Steve Jobs kept saying this over and over again on stage. Unfortunately, we don't live in a perfect world: iOS is not perfect, and things go wrong. However, luckily there are some great counter-measures and third-party tools to soften the blow.
Losing the data from your iPhone can happen for lots of reasons, including: Repairs that require you to erase all data on phone; or you may have erased the data (by accident or on purpose); or file corruption. Also you may lose iPhone files when upgrade to iOS 6. Anyway, losing data from iPhone is never a pleasant experience, but restoring iPhone from backup is fairly simple if you select an easy way.
iTunes Data Recovery is one of the professional yet easy-to-use programs to restore iPhone photos, contacts, calendar and other files from your iPhone. It enables you to extract unreadable iPhone backup file iTunes makes when you synced your iPhone with iTunes before, and then accomplish iPhone restore from backup. It is compatible with iPhone 5, iPhone 4S, iPhone 4, iPhone 3GS and other versions. If you are Mac users and lost data when upgrade to Mac 10.8, turn to restore iPhone on Mac.
If you have no backup file in hand, you need to turn to another software: iPhone Data Recovery. This iPhone restore software help you retrieve lost contacts, text messages, photos, calendar and more directly from iPhone. No need backup file any longer.
Find the right solution for you and follow the easy steps below to restore iPhone text messages, photos, contacts, etc.
Launch iTunes Data Recovery, the iPhone backup file appears in the main interface, select the one you need (there may be more than one files if you synced several iOS devices before). And then click "Start Scan". Here we take iPhone 5 for an example.
All recoverable files on your iPhone will be listed in the next interface: Contacts, call history, messages, notes and photos. Select your desired ones, and choose "Recover".
Specify a folder to save the files you restored from iPhone.
Have no backup file but need to restore your iPhone? Restore iPhone without backup is easy by following the steps below.
After launching iPhone data recovery, connet your iPhone to your PC. Click "Start" on the interface.
Then put your iPhone 4 or iPhone 3GS in DFU mode by following these steps (iPhone 4s, 5, 5s, 5c users skip this step):
Firstly, press "Home" and "Power" button at the same time.
Secondly, hold them for about 10 seconds (the program will count it for you).
Thirdly, release "Power" and keep pressing "Home" for another 10 seconds.
Click "Start Scan" to scan lost files from iPhone.
Then all the files on iPhone are shown by category. Choose one category and select the files you need to restore. To check whether you select the right files you need to restore, you can preview them before restore.
Click "Recover" to start to restore deleted files from iPhone and specify a location on your computer to save the restored iPhone files.
Then hold "Home" and "Power" button until the Apple logo appears to exsit DFU mode.
iPhone display freezing? iPhone doesn't detect by or appear in iTunes? iPhone can't sync with iTunes? Can't make or receive calls, send or receive text messages, or access email or the web? Or worse, iPhone simply won't turn on and does not respond to tap or button press?
If so, you need to restore iPhone to factory settings. It will delete all of the data on it, including any pictures, music, videos, and contacts. It's not guaranteed to fix your problems, but it is your best bet.
Here is a step-by-step tutorial:
The iPhone will be back to its original factory settings, and all of your data has been synced back to the iPhone.
Or else you could backup iPhone through iCloud and when iPhone stops working you could still manage to restore iPhone from iCloud, and rescue all your photos, contacts, Messages and other important files.