Hacking Bought Nintendo Pocket Football Club on emuNAND, doesn't work :(

[Jockel]

Hey guys, as the title says I just bought the game on the European eshop on an up to date emuNAND.
But when I try to start the game, the Nintendo 3DS loading screen just stays on the screen.

Did anybody experience a similar problem or even found a fix?

 

[Arras]

If it's a new game, chances are it's the same issue that Pokebank and Youtube have, aka 7.0+ encryption. None of the latest eShop releases will work on emuNAND (and this will happen to retail games sooner or later too, when SDK7+ games make it to retail). There is no estimate on when that will be fixed and I think Gateway hasn't even mentioned it. Pretty much the only thing you can do to play it right now is update the real NAND - if that is the issue, of course (although it probably is). Otherwise, hope for a Gateway 2.2/3.0 in what could easily be several months or for BBB to somehow dump and patch it (if that's even possible).

 

[Jockel]

Thanks for the elaborate reply.
Oddly enough, the new Mario Golf World Tour demo works fine.
I guess it's encrypted with older keys.

 

[an07her]

Why not just get the ROM? It's dumped already

 

[Jockel]

I'd rather have my legit game working, but as far as I know only the Japanese version (calciobit) is dumped.
At least according to Pongs release page...

 

[Arras]

Thanks for the elaborate reply.
Oddly enough, the new Mario Golf World Tour demo works fine.
I guess it's encrypted with older keys.

It's a demo from a retail game, that's probably why. Retail games don't have this issue yet. I'm just curious to see what will happen when SDK7 retail games finally appear and no new games work on flashcarts anymore, honestly.

 

[bartimeaus91]

Why not just get the ROM? It's dumped already

What? It doesn't exist.

 

[an07her]

It does. Pocket_Soccer_League_Calciobit_JPN_3DS-HR
The EUR version should come out dumped soon.

 

[bartimeaus91]

It does. Pocket_Soccer_League_Calciobit_JPN_3DS-HR
The EUR version should come out dumped soon.

I did not know that

 

[Arras]

It does. Pocket_Soccer_League_Calciobit_JPN_3DS-HR
The EUR version should come out dumped soon.

There's a big difference though. The Japanese one is much older and got a retail release. AFAIK this is eShop only.

 

[an07her]

You are right, I haven't checked before.

 

[BORODA]

It's a demo from a retail game, that's probably why. Retail games don't have this issue yet. I'm just curious to see what will happen when SDK7 retail games finally appear and no new games work on flashcarts anymore, honestly.

There's a rumor of 6.x exploit, so if that's true, the problem will be solved as 6.0 has the ability to run SDK7 games.

 

[Arras]

There's a rumor of 6.x exploit, so if that's true, the problem will be solved as 6.0 has the ability to run SDK7 games.

Smealum's exploit does not have the capability to make the system changes required by Gateway to function, so another 6.x exploit would be needed. Also, 6.x does? I know 6.x fixes the savegame issue which is a similar problem, but I don't think it would fix this as well.

 

[BORODA]

Smealum's exploit does not have the capability to make the system changes required by Gateway to function, so another 6.x exploit would be needed. Also, 6.x does? I know 6.x fixes the savegame issue which is a similar problem, but I don't think it would fix this as well.

The new KeyY was implemented in 6.0 I think, but it was used only in SDK7 as the default method for savegame encryption. They took time to validate it before forcing people to use it.

 

[Arras]

The new KeyY was implemented in 6.0 I think, but it was used only in SDK7 as the default method for savegame encryption. They took time to validate it before forcing people to use it.

This is not just about saving though. 7.0+ encrypts part of the game itself using a different key (that is calculated at the same time as the save KeyY thing, but it's not the same thing). http://3dbrew.org/wiki/7.0.0-13#FIRM_and_whitelist

 

[BORODA]

This is not just about saving though. 7.0+ encrypts part of the game itself using a different key (that is calculated at the same time as the save KeyY thing, but it's not the same thing). http://3dbrew.org/wiki/7.0.0-13#FIRM_and_whitelist

We only need to update to 6.0 to be able to use the new key. Then we can use emunand 7.0 with the new key in the keyslot to be able to successfully decrypt the part of NCCH partition.

 

[Arras]

We only need to update to 6.0 to be able to use the new key. Then we can use emunand 7.0 with the new key in the keyslot to be able to successfully decrypt the part of NCCH partition.

No, that's not how it works. There's two keyslots here, one containing the savegame key and one containing the content key. 6.x will fix the first key, 7.x will fix the second. Both are write-only and can only be written to while it's booting. By the time you get to emuNAND, it's far too late to do anything with it.

 

[BORODA]

No, that's not how it works. There's two keyslots here, one containing the savegame key and one containing the content key. 6.x will fix the first key, 7.x will fix the second. Both are write-only and can only be written to while it's booting. By the time you get to emuNAND, it's far too late to do anything with it.

Hmmm. Did I misunderstood the wiki then? I thought

The keyslot for this is now initialized during NATIVE_FIRM boot from the same function which initializes the 6.0 gamecard savegame keyY, see the NCCH page for details.

would mean that it's the same key used for save games. Well, that sucks then.

 

[Arras]

Hmmm. Did I misunderstood the wiki then? I thought

would mean that it's the same key used for save games. Well, that sucks then.

Yeah, you're misunderstanding. They are two different keys, but they are initialized at the same time.

 

[Reecey]

Surely as long as the Emunand is upto date wont it work with all games?. I thought it was just the Emunand that you worked on all the time and as long as the Emunand was upto date is it not just the same as system Firmware latest? I thought the Emunand was just a copy of system firmware?