I recently got a r4isdhc and updated with the correct firmware but when I load it up all I get is a white screen. No error codes or anything. When I try using the cart on a ds lite it works perfectly. I know that they are two different hardware versions but it's just strange to me that it works fine on one and not the other. Something's ive tried: Reformat sd card (fat/fat32) Different sd card Different versions of the software (different sources as well) Any ideas for other things to check?