Was on this part of the guide https://3ds.guide/installing-arm9loaderhax, but I didn't had a NANDbackup because while I was transfering to my PC there was a blackout on my house and I lost the file. So I kept going without the backup. When you were suposed to restore the backup to have the 11.2 version again, I tried to update it by the System Update. It didn't work. I did some research and some people used it a game to try to update it(I used Pokemon OR). After the download was complete, it said that would reboot the 3DS to install the new version. After that shit went downhills. Both screens are black(not even background light) But for some time I was able to get in Hourglass9 and Godmode. I thought "Hey, it's fine. I will deal with this later" and went to work, and when I got back from work I can't acess anything now. Can someone please help me? I'm really desperate here since I don't have the money right now to buy a new DS