Hi, so I had a DS Flashcard called "R4 SDHC Dual Core 2015" made by www.r4isdhc.hk which ran fine on my DSi (broken now) and O3DS XL (Broken as well). The O3DS was on OFW 9.6 (USA). When I got my N3DS in 2016, which was stock OFW 9.3, the card didn't show up. Now I'm on Luma3DS CFW 11.2 and still it won't show up. When I checked the card slot using DevMenu to see whether the card was inserted properly, I saw "unknown card". I checked the card's connectors which turned out to be all fine. I don't know what's going on and how to mange to make it run. I'm going to try the TWLSlot1Launcher.cia App later to see if that helps. Till then, any help would be greatly appreciated.