Two methods to recover iPhone 4 lost data on Computer: Directly Recover from your iPhone 4 lost data on Windows computer;Recover Previous Data via Your Device’s iTunes Backup File on computer.Wondershare iPhone 4 Data Recovery is the World's 1st iPhone 4 Data Recovery Software.You can scan and recover deleted data from your iphone directly or recover lost data from iTunes backup files, including Photos, Contacts, SMS, Call history, Calendar, Notes, Voice Memo, Safari Bookmark, etc
Wondershare iPhone 4 Data Recovery can recover 12 Types of File like Contacts, Messages,Photos, Videos, Camera Roll, Photo Stream, Photo Library, Message Attachments, Call History, Calendar, Notes, Voice Memos, Reminders and Safari Bookmarks;Recover all recoverable files including those recently lost from your device, and those currently existing on your device;Simply click to select the scanned files you want to recover.
Operating System: Windows 7/8 (64 bits & 32 bits)/Vista (64 bits & 32 bits)/XP (32 bit).
Run on Mac: iPhone iTunes Data Recovery Mac
Step 1. Connect your Apple device to your computer
Connect your device on your comoputer, and then run iPhone 4 Data Recovery(for Win). Select the device option in the window according to your device.
Step 2. Enter DFU mode and scan your device
Choose "Recover data from iOS devices" and you're going to enter DFU mode according to the steps shown in the window as follow.
Step 3. Preview and recover lost data from iPhone 4/3GS. iPad 1 or iPod touch 4
After the scan, You can preview all of lost data and tick off those you want to save them on your Mac by clicking "Recover".
Part 2: Recover Previous Data from iTunes Backup
Step 1. Choose the iPhone device according to yours
This recovery mode is available for all Apple devices as long as you have iTunes backup on your Mac. Choose the one for yours in the primary window
Step 2. Select a Recovery mode and begin to extract iTunes backup
Select the recovery mode of "Recover from iTunes backup", and the iTunes backup for your device will be automatically found and displayed. Choose it or the latest one if there are more than one and click "Start Scan" to extract it.
Step 3. Preivew and recover previous data from iTunes backup
When the scan completes, you can preview all the contents in detail by clicking the categories one after one. Mark those you want and click "Recover" to save them on your Mac.