Hacking Contenthax - a Vulnerability in Wii U File System Verification

[NintendU_the_great]

ok, this is all fine and nice. but i have a problem. haxchi works well with Yoshi Island DS USA, but i wanted to edit the apps meta file, to make it look more like a proper hoembrew channel. the problem is when i first tryed to upload a icontex.tga file or something from wupclient to wii u app. it worked from wupclient side, but when i reboot wii u i find ? mark icon instead of yoshi island, and title is now "???" i try clicking on it, and it say something like wrong data, or deleted data, so i need to reinstall game and delete. how do you all do this changing of boot icon and bootlogo and bootsound? for me, the app ceases to work if i try something like that! please tell me the secret recipe.

 

[javiliyors]

Here is my edited meta files:

https://mega.nz/#!h5w0XKBC!fVNQTt0pGBupQG_Qec5w8lePfrmggkLtoT3urDC9o4s

 

[NintendU_the_great]

Here is my edited meta files:

https://mega.nz/#!h5w0XKBC!fVNQTt0pGBupQG_Qec5w8lePfrmggkLtoT3urDC9o4s

thank you! i will try it and see if it works! btw - did you make this? or did you get it from somewhere else?



oh, did you use that meta.xml for yoshi island ds or some other game?

 

[AboodXD]

Lesson of the day:
You should edit your meta.xml yourself.

 

[NintendU_the_great]

Lesson of the day:
You should edit your meta.xml yourself.

dafuq? i didnt use that meta.xml yet.

 

[javiliyors]

thank you! i will try it and see if it works! btw - did you make this? or did you get it from somewhere else?

I edited the tga files with photoshop

U cand edit meta.xml for all games and the .tga files for icon and boot image

 

[NintendU_the_great]

I edited the tga files with photoshop

U cand edit meta.xml for all games and the .tga files for icon and boot image

so i can use the .tga's for any game , but meta.xml is for only one game?
if so, which game s that meta.xml for?

 

[AboodXD]

dafuq? i didnt use that meta.xml yet.

I wasn't specifically talking to you.

 

[javiliyors]

so i can use the .tga's for any game , but meta.xml is for only one game?
if so, which game s that meta.xml for?

The .tga is for any game, yes but this meta is for PAL brain kawashima

 

[NintendU_the_great]

The .tga is for ony game, yes but this meta is for PAL brain kawashima

ok. by "ony game" you mean any game , yes?

 

[javiliyors]

ok. by "ony game" you mean any game , yes?

"Any" game, sorry

 

[AboodXD]

I obviously know this, thats how I could test and port it to other versions. Now there are just not enough DS keys around for me to take a look at certain ones like yoshi touch and go for example.

You can use that program to convert extracted files to NUS...
I can't believe you overlooked this...

 

[Maschell]

Has anyone figured how to edit bootLogoTex.tga? No matter what settings I use to render it, it always seems to cause the file to not be accepted by the Wii U.

You can't change thr bootLogo.tga and bootMovie.h264. The hash is beeing checked on starting the app

 

[subcon959]

You can't change thr bootLogo.tga and bootMovie.h264. The hash is beeing checked on starting the app

I saw a video posted in this thread earlier where someone had changed the bootLogo.tga to say homebrew instead of Nintendo. It was late last night so I could've been dreaming though.

 

[Maschell]

I saw a video posted in this thread earlier where someone had changed the bootLogo.tga to say homebrew instead of Nintendo. It was late last night so I could've been dreaming though.

That was my video. You have to remove these checks => not possible on boottime. Only on rednand:

https://github.com/dimok789/iosuhax/commit/7f8796ab6e76c1f2a0c2dbf93829dec3ae850cad

 

[subcon959]

That was my video. You have to remove these checks => not possible on boottime. Only on rednand:

https://github.com/dimok789/iosuhax/commit/7f8796ab6e76c1f2a0c2dbf93829dec3ae850cad

Aha, well glad it was real and I wasn't dreaming. Btw, is there anyway to get rid of that line of gfx corruption on the Wii U logo screen just before HBL comes up using this method?

 

[InsaneNutter]

For people editing the iconTex1.tga how should i be saving it?

16, 24, or 32 bits per pixel? alpha channels?

I can use other peoples iconTex1.tga, however anything i do in Photoshop causes the game to corrupt and show up as "???"

Edit - I saved my Icon as 32 bits per pixel and the Wii U was happy with it

 

[driverdis]

For people editing the iconTex1.tga how should i be saving it?

16, 24, or 32 bits per pixel? alpha channels?

I can use other peoples iconTex1.tga, however anything i do in Photoshop causes the game to corrupt and show up as "???"

Flatten Image then save as 24 bits per pixel with compression off.

 

[javiliyors]

Flatten Image then save as 24 bits per pixel with compression off.

or better open original .tga and save in a original file

 

[TheBroCode]

this are the files I made
For everyone who wants to download my Metafiles.

Spoiler: Preview

Spoiler: Downloadlink

Works great, thank you!