Hacking Save Data, what am I missing?

[WeedZ]

I tried this a long while ago and gave up. But now i really want this to work.

So after investing many hours in MM, I have a 100% completion save. When I got my gateway, I dumped the rom from the cartridge and gave it to my kid as she had been bugging me for the game for some time. I played the game on 9.2 sysNand then dumped both the rom and save, created an emuNand, which is now updated to 9.8. I created a save with gw and replaced it with the dumped save. But the games says the save is corrupted and wants to format. So what do I need to do to get it to work?

 

[VerseHell]

The gateway mode always use the old encryption, regardless your sysnand version, that's why the save is not working. You need to decrypt it first with rxTools+savedatafiler.

 

[WeedZ]

The gateway mode always use the old encryption, regardless your sysnand version, that's why the save is not working. You need to decrypt it first with rxTools+savedatafiler.

Ok I see. I was certain 9.2 and 9.8 used the same encryption, so I was like 'wtf?'. Is that all, just decrypt it? And try it with no encryption?

 

[VerseHell]

- Extract your cartdridge save with rxTools and savedatafiler
- Boot into gateway mode
- Mount the game (but don't start it)
- Open sdf and go to the sd tab
- Highlight your save then press L+A.
- Turn off your console.
- On your sd card, copy the 000400000FF40A00.sav file, paste it in the same folder and rename "000400000FF40A00 - Copy.sav" with the game title ID (should be 0004000000125500.sav if you have the US version).
- Boot into gateway mode and start your game and the save should be here.

 

[WeedZ]

- Extract your cartdridge save with rxTools and savedatafiler
- Boot into gateway mode
- Mount the game (but don't start it)
- Open sdf and go to the sd tab
- Highlight your save then press L+A.
- Turn off your console.
- On your sd card, copy the 000400000FF40A00.sav file, paste it in the same folder and rename "000400000FF40A00 - Copy.sav" with the game title ID (should be 0004000000125500.sav if you have the US version).
- Boot into gateway mode and start your game and the save should be here.

That seems simple enough. Thanks man.

 

[pokemoner2500]

That seems simple enough. Thanks man.

I can confirm that works, how I converted my 9.x Pokemon save to Gateway/RXtools format (4.x sysnand)

 

[WeedZ]

- Extract your cartdridge save with rxTools and savedatafiler
- Boot into gateway mode
- Mount the game (but don't start it)
- Open sdf and go to the sd tab
- Highlight your save then press L+A.
- Turn off your console.
- On your sd card, copy the 000400000FF40A00.sav file, paste it in the same folder and rename "000400000FF40A00 - Copy.sav" with the game title ID (should be 0004000000125500.sav if you have the US version).
- Boot into gateway mode and start your game and the save should be here.

ok, so i got it working once i followed your instructions correctly. i need some understanding as to whats going on here though.

so '0004000000125500' is the majora's mask save. but whats '000400000FF40A00'?
Is this a temporary save slot for whatever software is loaded into gateway, before it gets flushed to sd by quitting the software? thats the best i can come up with.
In other words, will any save injected into a gateway rom go to 000400000FF40A00?