Hello everyone. I will try to explain my problem in as much detail as I can. It all started when I wanted to write some new ROMs to my Sky3DS card (blue button). I saw that I was using the 1.6 ver. of the Diskwritter so I decided to upgrade to the 2.02 ver. I did not care about save files or backups of any kind and just wanted to use the new version and write some new games. I opened the 2.02 version, saw my list of games and wrote some new ones, put the micro SD card in my Sky3DS, did the whole hold down the button when inserting, eject the card, insert it again and the first ROM showed up, as usual. I could switch between all my older ROMs, but when I got to the first new one it was blank. Nothing showed up. Tried re-doing the whole inserting process, reset my 3DS, went into Settings then went back to Home menu, but nothing worked. I started deleting the new ROMs one by one in hope that after deleting a certain one the others might show up. Nothing. Then I decided to delete all the ROMs, reformat, format the SD in Windows then format it again in Diswritter. When I tried to format it in Windows it told me that it couldn't do so and thus the vicious cicle began. Going back into Diskwritter I tried to format and reformat the SD a couple of times, It shows that it does that, but I can't tell the difference. Since then I have tried to use programs such as EaseUS Partition Master, SD Formatter 4, HP USB Format tool, tried removing write protection (because SD Formatter 4 says it's write protected), switched between Diskwritter 2.02, 1.6, 1,5, restarted my PC, system restored more than once, nothing. With Diskwritter I have gotten a bunch of different results. Sometimes I can write ROMs " just fine", but they don't show up on my 3DS and when I put the SD back into Diskwritter the ROM list is empty. Sometimes I can write ROMs, but when it finished writting their names change to the ROM's ID. Sometimes I can't write at all. Ticking "Verify" and trying to write a ROM results in an error. Whatever I try the Sky3DS gives me a slow blinking blue light (something's wrong, duh). I have used mutiple micro SD card adapters, I have used an USB card reader, inserting the SD in the micro SD slot and putting it in a SD adapter and inserting that into the SD slot. I have checked and confirmed that all my SD adapters have their lock switch set to the upward position. I have searched and read mutiple threads with somewhat similar problems. I read Osmosis's thread on fomatting SD/mSD cards: https://gbatemp.net/threads/formatting-your-sd-msd-for-sky3ds-gateway-3ds.387673/#post-5469015 Tried following the steps, but I guess I am doing something wrong. From the guide I understand that I need to format the mSD into FAT32 and that I need to first convert it to NTFS then to FAT32, but it gives me an error when I try. I will suply you with some screenshots I took, maybe they might help: http://imgur.com/a/hlvhC The mSD that I am using is a SandDisk Ultra 32GB class 10 MicroSDHC which is not fake. I have tried using a different mSD card and although I still get the " No Disk" error I am able to use Diskwritter to write a ROM, play it on my 3DS and then reformat the mSD to normal condition. If you have any ideas, suggestion what I might do to fix this issue feel free to comment. Also a very detailed step by step on how to format a mSD into NTFS then to FAT32 would be appreciated. I tried very hard to avoid writting this wall of text, but alas, I am stuck, sorry. Also if there are some grammatical errors look past them, trying to spell-check this heep gives me a headache.