R4 SDHC Dual Core 2014

hello Greetings
i have a problem with SD Card
when my friend gave it to me ds lite all games work fine now
my card format now i don't know a bit about how to install kernel frimware where to get
little help please

Hi, is it a white one with the gold 2014 inside a star? sort of?I have the files if that´s the one you got