Homebrew Replace Gamefiles and play it w/o CFW?

[xXDungeon_CrawlerXx]

Hey Guys,

I just thought about translating a japanese game (Taiko No Tatsujin).
I've a RegionFree WiiU and was able to install it on my SysNAND AND I'm able to play it without CFW.
Is it possible to replace game content without the need to start a CFW before?

 

[Hiccup]

yes; using caffine or loadiine

 

[xXDungeon_CrawlerXx]

yes; using caffine or loadiine

I've installed the game on SysNAND. I won't boot any Homebrew before playing the modified game.
Am I right that the WiiU doesn't check the /contents/ folder? If yes, it should be possible by replace the files with WupClient, or not?

 

[TotalInsanity4]

I've installed the game on SysNAND. I won't boot any Homebrew before playing the modified game.
Am I right that the WiiU doesn't check the /contents/ folder? If yes, it should be possible by replace the files with WupClient, or not?

Correct, you should be able to edit everything in /content. If it won't boot, you can always delete and redownload from the eShop, so there's really no risk

 

[xXDungeon_CrawlerXx]

Correct, you should be able to edit everything in /content. If it won't boot, you can always delete and redownload from the eShop, so there's really no risk

Well, that'S great!
Another question. How can I extract the files from .app and .h3 files?
It would take HOURS to download the content folder with WUPClient xD

 

[Irastris]

Another question. How can I extract the files from .app and .h3 files?

Use crediar's CDecrypt. I've attached it here for your convenience.