I recently bought a second hand O3DS. It is a japanese version and uses FW 11.2.0-35J. I tried to hack it following this guide "https://3ds.guide/homebrew-launcher-(soundhax)" which says that it applies to my 3DS using FW from 9.0.0 to 11.2. I was at the second last step of injecting my FBI when something went wrong. It didn't work. I followed their troubleshooting guide using GodMode9. It said that I should have 2 sets of .app and .tmd files, one uppercase and one lowercase, whereas I only had one set of lowercase. I then tried to start reinstalling arm9loaderhax again and it sort of stopped working. After messing with it for a while. I restored my SysNand(but not my emunand) using Hourglass9 from the "NANDmin.bin" file. I also formatted my SD card. I tried to put the empty SD card back into the O3DS but the 3DS won't turn on. The blue light at the bottom flashes and nothing happens. I really need help fixing this, and if anyone could provide/link a good guide for hacking a O3DS with Fw 11.2, or what i did wrong following the guide I mentioned, that would be much appreciated. I am new to 3DS hacking and I do not understand the Terminology very well although I know that they are different and I can recognize the names. I have some experience jailbreaking some of the old Iphones, so I am not completely incompetent.