Hacking JGecko U Setup Guide

[BullyWiiPlaza]

what's the difference

It needs to be an assembly instruction address and not data. Otherwise it's completely pointless anyway. Data never executes (normally).

 

[HackingNewbie]

It needs to be an assembly instruction address and not data. Otherwise it's completely pointless anyway. Data never executes (normally).

I know, I thought you meant the actual address xD! it was lwz r23,-10795(r31)

 

[nikeymikey]

Right can anyone explain this error to me, it happens when i try to download code database. I have a game connected MK8 (eur) in this case.




Just guess im not meant to cheat lol

 

[LawnMeower]

Right can anyone explain this error to me, it happens when i try to download code database. I have a game connected MK8 (eur) in this case.




Just guess im not meant to cheat lol

You can copy and paste screenshots here in the forum, so no need to upload them
maybe something on the title database has changed (again) so JGecko U fails to parse them.
Maybe @BullyWiiPlaza or someone else can post a list of all Wii U Titles containing Title, Title ID, Producer ID (serial) and region in a row

 

[nikeymikey]

You can copy and paste screenshots here in the forum, so no need to upload them
maybe something on the title database has changed (again) so JGecko U fails to parse them.
Maybe @BullyWiiPlaza or someone else can post a list of all Wii U Titles containing Title, Title ID, Producer ID (serial) and region in a row

Cheers for the explaination, ill keep an eye out for any updates to this.

 

[BullyWiiPlaza]

You can copy and paste screenshots here in the forum, so no need to upload them
maybe something on the title database has changed (again) so JGecko U fails to parse them.
Maybe @BullyWiiPlaza or someone else can post a list of all Wii U Titles containing Title, Title ID, Producer ID (serial) and region in a row

Cheers for the explaination, ill keep an eye out for any updates to this.

That's not the reason... we had this before. It's an error connecting to the code database (SSL error) because of an older or non 64-bit Java version (?). I'm not sure what the fix was but only some users have this problem.

Ah, I found a way to disable the certificate validation now so it will always work. This will be part of the next update. EDIT: Done

 

[nikeymikey]

That's not the reason... we had this before. It's an error connecting to the code database (SSL error) because of an older or non 64-bit Java version (?). I'm not sure what the fix was but only some users have this problem.

Ah, I found a way to disable the certificate validation now so it will always work. This will be part of the next update. EDIT: Done

You were correct, I updated my Java and it all worked as it should...

 

[HackingNewbie]

@BullyWiiPlaza I see a commit fixing the hooking for some games. Was this addressing the issue I told you about?

 

[BullyWiiPlaza]

@BullyWiiPlaza I see a commit fixing the hooking for some games. Was this addressing the issue I told you about?

Yeah exactly the assembler error you were getting has been addressed

 

[HackingNewbie]

Yeah exactly

Cool. Like my profile picture? xD

 

[RemixDeluxe]

I'm running The Wonderful 101 (disc, not digital) after I run TCPgecko and it causes the Wii U to freeze up on the game's bootscreen. Just to be sure it isnt my game itself I checked and it boots up fine on its own.

 

[JingleBells]

I'm running The Wonderful 101 (disc, not digital) after I run TCPgecko and it causes the Wii U to freeze up on the game's bootscreen. Just to be sure it isnt my game itself I checked and it boots up fine on its own.

@BullyWiiPlaza I can confirm that...The latest JGecko U and TCPgecko is having issues....Ghosts freezes as soon as I connect with "socket closed" error.
*EDIT....Problem solved

 

[LawnMeower]

@BullyWiiPlaza I can confirm that...The latest JGecko U and TCPgecko is having issues....Ghosts freezes as soon as I connect with "socket closed" error.
Mario 3D connects and seems to work but I was unable to find any codes even though I know exactly where to look, and after sending a code that previously worked it froze....

latter is neither an issue of JGecko U or TCPGecko. That it froze while sending the old code seems to be cause by invalid addresses. What memory range did you use?

 

[JingleBells]

latter is neither an issue of JGecko U or TCPGecko. That it froze while sending the old code seems to be cause by invalid addresses. What memory range did you use?

I figured it out....The code I had turned out to need a pointer and shifted out of where I thought it should be.....And why the code froze my Wii U I am not sure (probably when I sent the wrong code that tuned out to need a pointer) cuz it works fine now...<Mario 3D
Thank you tho

 

[jbuck1975]

I'm running The Wonderful 101 (disc, not digital) after I run TCPgecko and it causes the Wii U to freeze up on the game's bootscreen. Just to be sure it isnt my game itself I checked and it boots up fine on its own.

It's not just your game. I have that problem also.

 

[HackingNewbie]

@BullyWiiPlaza when I load JGecko U, nothing happens. When I load it in CMD, I get this:

Exception in thread "AWT-EventQueue-0" java.lang.NoClassDefFoundError: c/c/c/c/x
        at ApplicationGUILauncher.j(Unknown Source)
        at java.awt.event.InvocationEvent.dispatch(Unknown Source)
        at java.awt.EventQueue.dispatchEventImpl(Unknown Source)
        at java.awt.EventQueue.access$500(Unknown Source)
        at java.awt.EventQueue$3.run(Unknown Source)
        at java.awt.EventQueue$3.run(Unknown Source)
        at java.security.AccessController.doPrivileged(Native Method)
        at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(Unknown Source)
        at java.awt.EventQueue.dispatchEvent(Unknown Source)
        at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)
        at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
        at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
        at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
        at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
        at java.awt.EventDispatchThread.run(Unknown Source)
Caused by: java.lang.ClassNotFoundException: c.c.c.c.x
        at java.net.URLClassLoader.findClass(Unknown Source)
        at java.lang.ClassLoader.loadClass(Unknown Source)
        at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
        at java.lang.ClassLoader.loadClass(Unknown Source)
        ... 15 more

 

[BullyWiiPlaza]

@BullyWiiPlaza when I load JGecko U, nothing happens. When I load it in CMD, I get this:

Exception in thread "AWT-EventQueue-0" java.lang.NoClassDefFoundError: c/c/c/c/x
        at ApplicationGUILauncher.j(Unknown Source)
        at java.awt.event.InvocationEvent.dispatch(Unknown Source)
        at java.awt.EventQueue.dispatchEventImpl(Unknown Source)
        at java.awt.EventQueue.access$500(Unknown Source)
        at java.awt.EventQueue$3.run(Unknown Source)
        at java.awt.EventQueue$3.run(Unknown Source)
        at java.security.AccessController.doPrivileged(Native Method)
        at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(Unknown Source)
        at java.awt.EventQueue.dispatchEvent(Unknown Source)
        at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)
        at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
        at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
        at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
        at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
        at java.awt.EventDispatchThread.run(Unknown Source)
Caused by: java.lang.ClassNotFoundException: c.c.c.c.x
        at java.net.URLClassLoader.findClass(Unknown Source)
        at java.lang.ClassLoader.loadClass(Unknown Source)
        at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
        at java.lang.ClassLoader.loadClass(Unknown Source)
        ... 15 more

Oh, it's now updated/fixed anyway

 

[HackingNewbie]

Oh, it's now updated/fixed anyway

Great, I'll have to try tomorrow, I decided to waste my night on a wii code tonight anyway

 

[Nullleben]

Hi
I got interested in this stuff. What's the first thing I need to do on the Wii U before doing the jgecko. Do I need to add a home brew or what. Can someone please help me

 

[HackingNewbie]

Hi
I got interested in this stuff. What's the first thing I need to do on the Wii U before doing the jgecko. Do I need to add a home brew or what. Can someone please help me

OK. First the SD card part:
create a folder called wii u, then apps inside of that, then tcpgecko inside of that. Download these files at https://github.com/BullyWiiPlaza/tcpgecko/:
tcpgecko.elf
codehandler.bin
then, go into the meta folder and download meta.xml and icon.png. Once you have those four files, copy all of them into the tcpgecko folder on your sd card we made before. Okay, that is the SD card part done! Now the computer part.
Download this: https://github.com/BullyWiiPlaza/JGeckoU/blob/master/JGecko U.jar?raw=true and put it in a folder (don't put it on the desktop because the program generates a lot of files that would make your desktop messy).
Now for the Wii U part:
O your wii u, go to wj44.ml, then scroll down to "kernel examples", then "homebrew launcher". After a few seconds you will be in the homebrew launcher. Load tcpgecko. Press the X button. You should land in the wii u menu. Load whatever game you want. Then, on your computer, wait until the game boots up, then open "JGecko U.jar" when the game is fully loaded. Enter your Wii U's IP address and click "connect". If everything went right, your computer should now be connected to your wii u, ready to send cheat codes to the Wii U.