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Discussion in '3DS - Homebrew Development and Emulators' started by mrissaoussama, Sep 10, 2016.
Why isn't it possible to edit a save file to launch the homebrew launcher?
maybe cause the GAME is on the ROM (Read-only-memory) and as such we can only use saves to share entrypoints found in the ROM
because you also need to find an exploit in said game.
This is what Ocarina of Time hax is.
If you're talking about editing a save game, that depends.
If you want to run an exploit from a digital title, easier said than done due to how you need to first decrypt the save before you can modify it, and then encrypt it. This process requires an entrypoint all its own.
If you want to run an exploit from a game cartridge, this is easier to do because there's no console-specific save encryption to worry about, but you need some sort of tool to load the exploited game save onto the cartridge like a save dongle or another exploited system.
We can't do that using a save manager app?
Like JK's Save Manager? Yes, but once you're there you've already got an entry point.
What if i want to turn a random 3ds game cart into an entry point to use with other 3ds consoles?
find an exploit in the game first. easier said than done.
this is possible and has been done. read up on your 3ds exploits!
U can get a ROM, edit the ROM to creat a custom entry point, then build a CTR game card with that ROM, but this is quite expensive and needs a lots of hardware, software and knowledge.
Bullshit. The ROM would just fail the signature check if it was modified.
I use my Sky3DS exclusively for this purpose.
You need to find an exploit in the game. Reverse the save checksum, otherwise any edit would make the save corrupt. Check for vulnerabilities, such as buffer overflow etc. Check if the vulnerability can be exploited, if yes you can load custom code with it. Create a payload, a rop and you're done. If that's out of your knowledge then you can't do it.