There are many android phone users, and losing important data from it happens unexpectedly.

If you find the need to recover them, you can use Coolmuster Android Data Recovery app to help, I think this one is really helpful, it would help you recover lost android phone sms, contacts, photos, videos, and so on, from android phone internal memory card easily.

Step 1: Connect your phone to computer
Connect your smart phone to computer via the USB cable, then launch the app.You'll see the main interface like below, then you need to enable USB debugging and root your phone.

Step 2: Scan for the lost data on your phone
After that, you should click "Refresh" button, then your phone will be detected immediately. Then there will be an superuser Request shows on your phone, you need to click "Allow" to on your phone to allow the app to scan your phone. The program will automatically detect your phone and scan them deeply. When the scan finishes, all the contained files in your phone will be displayed in clear categories.

Step 3:Preview and recover lost data
Now you can preview all of the data on your phone, select and check those you need to recover, click "Recover" to start the recovery.

That's all!
http://www.coolmuster.com/android/