alright im trying to get pokemon quarts i already have patch just need rom idk what the rom is but i think its ruby but my main point is will a gba rom work on a R4?
Not without the EZ Flash 3-in-1. And a program as well. Not sure what it's called. What firmware are you using?
I'm not sure... but I don't think I have EZ. But I can play gba roms fine, I can save and everything. I even checked my second slot, but it's the default cartridge when you buy the ds lite.
You can use Wood R4 which is way better. - http://forum.romulation.net/index.php?topic=39701 Not sure if you can use the 3-in-1 directly or not though... You can't play GBA roms on a slot-1 flashcart without the EZ Flash 3-in-1... Unless you have the SuperCard DSTwo...
You need an EZ Flash 3-in-1. - http://shoptemp.com/products/EZ-3-in-1-Extension-Kit-for-Nintendo-DS-Lite-p-40.html