Here's how:
Step 1: Download and install Coolmuster Android File Recovery on your computer .(You need to change the Android settings on the phone or tablet.Go to: Settings > Applications > Development > USB Debugging, and turn it on.)
Step 2. Connect your Android phone to computer
Connect your Android phone to the computer with USB cable.
Step 3. Scan Android phone to find the lost data
After connected your Android phone, the software will quickly scan the device to find all the existing and lost data.
Step 4. Preview and recover deleted files android
Preview all lost data from android phone.Then you can click "Recover" button to get deleted files back.