szymekc

You can temporarily replace Gateway's launcher.dat with Decrypt9's.

https://gbatemp.net/threads/download-decrypt9-open-source-decryption-tools-wip.388831/

Holy shit, I got it to work with HANS and Gateway. Thanks for your help, else I would be still wondering why doesn't my dump work, lol. The main post is a bit misleading though because a retail copy is not required at all.

If you already have a ROM, then you don't need to dump the .cxi. What you will probably need to do is decrypt it with Decrypt9 (or the rxTools menu, whichever you prefer).

How do I run Decrypt9 with a 10.7 emunand and 4.5 sysnand?

AFAIK it can't run on emunand, and I can't get homebrew to work on my very old sysnand.

Braindump doesn't dump everything, only what you need to create a HANS patch. Try dumping your game with the Gateway menu (hold L when booting Gateway, or just don't have the red card inserted). When that's complete, extract the exheader, and use that in addition to your existing romfs and exefs to build a .3ds rom.

Oh, I had no idea. Thank you for the answer, but my problem is still not solved as I don't own a legit copy of AS, and GW seems to be unable to dump its own roms. Also, why should I make a ROM with Gateway when I already have one on my PC, downloaded from some rom site and dumped to .cxi with Braindump? The Decrypt9WIP homebrew didn't work for me for some reason. Is it because I have emunand newer than 9.2? How do I properly decrypt a game then?

I am having a problem when booting the game with my Gateway - when I try to do so, it gives me an "The game card was removed" error and the 3ds shuts down. I dumped an Alpha Sapphire rom with the newest braindump, decrypted and unpacked it, replaced the files necessary and rebuilt the .3ds rom - and the newest emunand GW 2.7 can't run it for me.

Does anyone know how to fix this?

I've never ran the normal AS rom before, as I decided to play the normal game on OR and the hack on AS. I also didn't uninstall the OR update, thinking it doesn't affect AS.