I have an Original R4 (black cartridge) ________________ | | | | | R4 | | Upgrade | | Revolution for DS | | (NDSL/NDS) | \_______________| Anyways that's what it's called.. I peeled the sticker back to make sure it wasn't a fake (no chip) I just found it again and I'm trying to get it to work on the DS Lite.. I've tried several different kernals (R4v.172(SDHC) - r4v1.18 - Wood R4 v1.61) None of them work.. I just get the Black Loading... Screen it won't go away.. I even tried no kernal on the microSD (which btw is 2GB) and obviously that didn't work.. I even tried eveything on a 8GB SDHC microSD.. I have re-formated the microSD to FAT32 as well.