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 it 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 smartphone 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, or the app can't detect your phone successfully. Step 2: Scan for the lost data on your phone Step 3: Preview and recover lost data That's all!