Steps to install:
Download the attached zip, copy the contents of the SD folder to the root of the sd card
Open homebrew launcher, load FST_patcher.rpx and patch Wii U Chat
Once done, reboot your console, open hbl again, launch mocha with relaunch os off and return to system menu off
Open ftpiiu_everywhere and connect to your Wii U with your ftp client of choice
Go to storage_mlc/sys/title/00050010
Now, it's going to depend on your region, for EUR consoles go to 1005A200, for USA 1005A100 and for JPN 1005A000
Open the code folder and drag and replace the cos.xml and doors.rpx files
Close ftpiiu_everywhere, hbl and turn off your wii u
Turn it on, and try to open Wii U Chat, it will launch mocha, you want to have these settings: relaunch os off and return to system menu on, you can turn on skip this menu on launch if you want
That's it!
If you don't want mocha you can use sign_c2w_patcher if you want, just rename it to mocha.elf and put it into the apps folder.
Please let me know if you have any questions and if you do it successfully please share it
Thanks to:
@Maschell for PayloadFromRPX, homebrew_launcher_installer and discovering FailST
@Rambo6Glaz for the FailST installer
@GaryOderNichts for his mocha fork
And yes, I modified some code of the above mentioned repo's, I will publish the corresponding source code to comply with GPLv3
Fuente y descarga:
https://gbatemp.net/threads/release-potatohax-a-free-haxchi.605076/#post-9699887 
gracias por la info ![[oki]](/images/smilies/net_thumbsup.gif "Ok!")
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