Hello guys! Since I'm getting no answers in existing threads, I thought it would be good to open up a personal thread. Main problem: cant play Pkmn SuMo cartridges on my O3DS. I'm using rxtools and mset exploit to access emuNAND and getting the "Card was removed"-error messages, when I try to play SuMo. The emuNAND should be on latest FW version iirc and sysNAND is on 4.5 (because setting up a different exploit than mset on a higher FW version did not work in the past). So there are different ways to play fcking SuMo now: 1. setting up another exploit and update sysNAND to ??? => playing SuMo on sysNAND, other games on emuNAND (not deleting rxtools) 2. setting up another exploit to use Luma3DS to access emuNAND that way or putting emuNAND to sysNAND ??? (not deleting rxtools) 3. overwriting existing mset exploit so that Luma3DS is booting instead of rxtools (=deleting rxtools) So the ??? means its just theoretical, not proven. I read a lot about that topic, but the most of it just ends in "get a9lh u scum", but thats not the point. To keep it simple; there are reasons I cant install a9lh atm. Point 3. might not work (read the spoiler). Warning: Spoilers inside! I followed this from various internet sources: "Steps for MSET users: 1. 1. Put your 3DS SD card into your computer 2. Open the Luma3DS zip file you downloaded above 3. Extract the arm9loaderhax.bin file to the root of the SD 4. In the Luma3DS zip, go into the "MSET" folder and drag and drop the Luma3DS.dat file to the root of your SD, replacing any that exists. 5. Rename Luma3ds.dat file to launcher.dat 6. Delete the rxTools folder Now when you open System Settings > Other Settings > Profile > Nintendo DS Profile it will boot into Luma3DS CFW" But it didnt work that way with the latest version of Luma. So, can anyone update that or can I use an older Luma version to get this working? I actually dont want to set up another exploit tho... I want to keep it easy and keep my current emunand which currently cant play SuMo cartridges (screw rxtools T-T). Problem here; Luma got updated and requires now a "luma3ds.nds" file to setup Luma3DS on mset exploit, but I dont know wth I 've got to do with that. So, maybe there is somebody out there, who might help me. I need to know, which method is the most painless one, if there are other possibilities and a concrete list of step I need to do so that I finally can play SuMo.