FoneLab can help you easily recover deleted photos from iPhone 4 before data is rewritten. The software can recover data through two main ways: Recover from iOS Device and Recover from iTunes Backup File. With any one way of them, you are able to recover deleted photos on your iPhone.
If your iPhone is iPhone 4, you need do more 3 steps before the software enters scanning mode.
1. Hold your iOS device in hand and click the Start Scan button.
2. Press and hold the Power and Home buttons at the same time for exact 10 seconds.
3. Release Power button and keep holding Home button.
For more detailed instruction, please refer to How to recover deleted photos from iPhone.
Tips :
1. Make sure iTunes is the newest version in PC.
2. Don't run iTunes at the same time when using the software.
3. Download and install the plug-in when the software prompts (Only for iPad 1, iPod Touch 4, iPhone 4 and iPhone 3GS).