Hacking Pasta CFW - A CFW that allows unsigned CIA to be installed on Old and New 3DS! (required ninjhax)

[JoostinOnline]

Lol why doing simple when else if has to be used xD
(it's a joke. It's obvious that switch was better at this point xD)

Well getting rid of some variables and having a default case are the main benefits. They certainly aren't groundbreaking changes, just good practice. If the patch sizes ever change (I have no idea if they would), the sizeof covers that too. Always prepare for the unexpected.

 

[VinsCool]

Well getting rid of some variables and having a default case are the main benefits. They certainly aren't groundbreaking changes, just good practice. If the patch sizes ever change (I have no idea if they would), the sizeof covers that too. Always prepare for the unexpected.

That's my point xD You simplified it a lot

 

[laharl22]

Good luck guys i want a spider for 9.2 CN are 75 euro on my country

 

[metroid maniac]

Good luck guys i want a spider for 9.2 CN are 75 euro on my country

If you have a 2DS you might be waiting longer, since there's no way to get a cia installer without CN or a flashcart on 2DS for now.

 

[laharl22]

If you have a 2DS you might be waiting longer, since there's no way to get a cia installer without CN or a flashcart on 2DS for now.

hopeffuly i have an old 3ds xl i have already the 4.5 mset and plantine and rxtools.

 

[Riku]

Yo, I heard you guys like Ambassador and GBA games, so I put some GBA games into Ambassador games:

 

[davhuit]

Yeah, I didn't tried yet but if the original roms are inside the GBA VC, it should be possible to inject other roms in it and check if they are compatible.

 

[prototech]

Yo, I heard you guys like Ambassador and GBA games, so I put some GBA games into Ambassador games:

Now, would you mind sharing the knowledge?

 

[Apache Thunder]

Yeah exactly how the CIA and rom injection was built/done would be good to know. I had attempted to build a CIA of an unmodified GBA VC title as a test and even that wouldn't boot. I also tried building it using ScireM's 3DS Rom builder then extracting the CXI with 3DSExplorer. After converting that to CIA it wouldn't install. (though it did install while in Gateway mode. But Gateway can't boot GBA stuff, so can't test if it worked)

Probably encryption related. 3DS roms are usually zero key encrypted for Gateway. But PastaCFW and PBT CFW do not support that method of encryption for CIA files. (Gateway does however) Installing them while in Gateway mode works. But they do crash if loaded from PastaCFW/PBT.

I'm interested to know how you built yours. Looks like the sig checks in AGB_FIRM was a lie.

 

[davhuit]

I tried the classic method using a .3DS version but once extracted, the romfs folder is empty so it seems it require to unpack/rebuild the .cia directly.

It seems you also managed to get a region-free home menu or either to region-free those cias as your home menu is japanese and both icons of the GBA VC games are USA/EUR ones.

 

[Ambassador]

I tried the classic method using a .3DS version but once extracted, the romfs folder is empty so it seems it require to unpack/rebuild the .cia directly.

It seems you also managed to get a region-free home menu or either to region-free those cias as your home menu is japanese and both icons of the GBA VC games are USA/EUR ones.

no, romfs is not used in vc gba. gba rom are located in code.bin

 

[Riku]

Yeah exactly how the CIA and rom injection was built/done would be good to know. I had attempted to build a CIA of an unmodified GBA VC title as a test and even that wouldn't boot. I also tried building it using ScireM's 3DS Rom builder then extracting the CXI with 3DSExplorer. After converting that to CIA it wouldn't install. (though it did install while in Gateway mode. But Gateway can't boot GBA stuff, so can't test if it worked)

Probably encryption related. 3DS roms are usually zero key encrypted for Gateway. But PastaCFW and PBT CFW do not support that method of encryption for CIA files. (Gateway does however) Installing them while in Gateway mode works. But they do crash if loaded from PastaCFW/PBT.

I'm interested to know how you built yours. Looks like the sig checks in AGB_FIRM was a lie.

It is require additional signature check patching, it's not that simple. Personally, I'm not familiar with VC ROM injecting at all, so I just used Ambassador game as template. I thought about writing tool to build GBA cias from scratch, but it requires figuring this part attached to the end of every ROM. It's most likely storing info about ROM id and size. For example, Mother 3 is 32MB ROM and there's no 32MB Ambassador games exist. Anyway, I don't have VC rom injecting expience and figuring this stuff out takes time.

 

[Raugo]

It is require additional signature check patching, it's not that simple. Personally, I'm not familiar with VC ROM injecting at all, so I just used Ambassador game as template. I thought about writing tool to build GBA cias from scratch, but it requires figuring this part attached to the end of every ROM. It's most likely storing info about ROM id and size. For example, Mother 3 is 32MB ROM and there's no 32MB Ambassador games exist. Anyway, I don't have VC rom injecting expience and figuring this stuff out takes time.

The Fire Emblem EU rom have 32MB rom.

 

[Fatalanus]

Riku, those .cia created would work with Gateway, for example?

 

[Apache Thunder]

Riku, those .cia created would work with Gateway, for example?

GBA/TWL stuff is broken with Gateway. Not related to how they are built. General issue with how Gateway patches things that somehow interferes with the reboot into AGB/TWL.

 

[WeedZ]

It is require additional signature check patching, it's not that simple. Personally, I'm not familiar with VC ROM injecting at all, so I just used Ambassador game as template. I thought about writing tool to build GBA cias from scratch, but it requires figuring this part attached to the end of every ROM. It's most likely storing info about ROM id and size. For example, Mother 3 is 32MB ROM and there's no 32MB Ambassador games exist. Anyway, I don't have VC rom injecting expience and figuring this stuff out takes time.

So? what? They just have to be the same size?

 

[Fatalanus]

Thank you for your answer, Apache Thunder!

 

[gamesquest1]

It is require additional signature check patching, it's not that simple. Personally, I'm not familiar with VC ROM injecting at all, so I just used Ambassador game as template. I thought about writing tool to build GBA cias from scratch, but it requires figuring this part attached to the end of every ROM. It's most likely storing info about ROM id and size. For example, Mother 3 is 32MB ROM and there's no 32MB Ambassador games exist. Anyway, I don't have VC rom injecting expience and figuring this stuff out takes time.

is the additional AGB_FIRM signature check patch going to be shared or.....not

pretty sure i got the custom GBA cia files figured out, but no way of confirming i done it correctly

 

[Melon__Bread]

pretty sure i got the custom GBA cia files figured out, but no way of confirming i done it correctly

You could try running it on a 3DS

 

[Scarlet]

is the additional AGB_FIRM signature check patch going to be shared or.....not

pretty sure i got the custom GBA cia files figured out, but no way of confirming i done it correctly

Can't you just install it to check, or do you not have a copy of Cubic Ninja?