If it says 'You already have existing decrypted files. Now before you continue, and especially if you only have 4 GB of RAM: Close all unnecessary programs on your PC! If there is not at least 2 GB of free RAM, your PC might crash because it will run out of RAM!.Copy the unmodified Pokemon X/Y ROM into the Step 2 folder and rename it to 'rom.3ds'.If there is a file named '.code.bin', rename it to 'code.bin'.Check the exefs folder, there should also be three files in the folder: banner.bin, code.bin and icon.bin.Now the decrypted folder should contain three files: exefs.bin, exheader.bin, romfs.bin Browse to the 'decrypted' folder, and rename 'DecryptedExHeader.bin' to 'exheader.bin' and 'DecryptedExeFs.bin' to 'exefs.bin'.Open the 'exe' folder in the PackHack folder and copy all files to the 'exefs' folder you created earlier.Copy the files 'DecryptedExHeader.bin' and 'DecryptedExeFs.bin' from the PackHack folder into the 'decrypted' folder.When you are prompted to save, browse to the 'decrypted' folder and save it with the name 'romfs.bin'.

Click on Open and choose the romfs folder in the PackHack folder.

Go to your PackHack folder from the Complete Guide and run 'RomFS Builder.exe'.

Then create a new folder named 'decrypted' and another new folder named 'exefs'. In the CIA folder there are three folders: 'For 3DS SD card', 'Step 1', 'Step 2'.

Follow the Complete Guide for building a Pokemon Neo X/Y ROM up to the 'Rebuild your game' step, if you haven't done so already.

Make sure to have backups and save all open files before proceeding. Note: I'm not responsible for any damage to your PC / 3DS caused by following this Tutorial.

at least 4 GB of RAM (one tool in particular is coded poorly and will eat up to 2 GB of RAM.).

However I'm not sure if this method would work on any CFW. I was able to create a CIA, which I installed in my Gateway EmuNAND 9.8 and works there without updates. So, a lot of people were asking, how to make a CIA of Pokemon Neo X/Y. Wow, nice job with the new Title Screen! Looks great!

Pokemon neo x and y luma