I extracted a RomFS and ExeFS from an Ultra Moon cxi and modified them using PK3ds using Hackingtoolkit3ds. However, I can't rebuild it for citra using the same tool. help.
Big problem. The moment I put in my SD card and boot my 3ds, the error from earlier occurs. Without the SD card, when I boot it, the light turns blue for a second, then it turns off.