My cousin bought the R4 gold pro (This one: http://3ds-flashcard.com/375-thickbox_default/r4i-gold-pro-2017r4-for-2ds-n3ds-xl-dsi-xl-nds.jpg) and i was gonna help set it up but don't know what firmware is needed & such?
I also heard about a "Timebomb" Not really knowledgeable on what that is.