Hey this is the way I did it on my R4SDHC with a 4GB MicroSD Card
Backup the Games and Saves from your SD Card. Then format it. (Quick format ticked off)
Go to this site and download the file:
http://filetrip.net/f24241-RetroGameFan-R4...om%29-6-53.html
Unpack it. Open the folder you just...
