Oky, i've had my R4-i for a while now, and have never encountered a problem. Until recently. My bother updated my ds-i (my god I want to kill him), with the face book picture unloader update two days ago. And now my R4-i Doesn't work. Does anyone have a fix, or a software reversal?
You cannot reverse your DSi firmware, and the facebook update blocks all flashcarts. Whether or not there is a fix depends on your card. Does your card have a yellow "1.4" on it? If not, it likely won't work. You will have to buy a new one, like the Acekard 2i.