1. On your PC or Mac, download and install the LeapFrog Connect application for LeapPad from www.leapfrog.com/connect
2. Launch the LeapFrog Connect application on your computer.
3. Power on the LeapPad Platinum while simultaneously holding down the Right D-Pad and Home buttons. As you power up the LeapPad Platinum while holding down these buttons, it should boot to a "connection needed" screen:
4. Once the "connection needed" screen appears, release the buttons you've been holding down.
5. Using the USB cord that came included with the LeapPad Platinum, plug the LeapPad Platinum into the computer.
6. The LeapFrog Connect application will detect and correct any missing or corrupted files on the LeapPad. Once the sync completes, click the eject button on LeapFrog Connect and disconnect the LeapPad Platinum.