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DacoTaco / priiloader

A Wii homebrew application that can prevent and fix some user level bricks
GNU General Public License v2.0
544 stars 101 forks source link

Region Free Patch Japanese patch doesn't work. #278

Closed TheTechRobo closed 3 years ago

TheTechRobo commented 3 years ago

[Original Title: Region Free Patch didn't work on MattKC's $1 Wii?]

Maybe something to look into. Haven't finished the video so it may be fixed at the end. Will update soon.

https://www.youtube.com/watch?v=sdWmm33VzBM

Update: He didn't fix it, so definitely to look into. It's a japanese wii, 4.3 (he used letterbomb). Region J I think.

DacoTaco commented 3 years ago

ye, the japanese patch has issues. its a known thing. i think ive investigated this before, but i can't remember what conclusion i came to then haha. i -think- the issue has been there even before i switched hacks format many years ago.

i also sadly don't have a Japanese wii nor a different region game to try it with..

TheTechRobo commented 3 years ago

Couldn't you try dolphin?

DraconicNEO commented 3 years ago

Couldn't you try dolphin?

Yes he could, but he probably won't since the Japanese Region is the most heavily neglected region in the scene. These patches apparently even work on Korean Systems (somehow). yet they don't work on Japanese systems or Japanese games in a different region.

DraconicNEO commented 3 years ago

i also sadly don't have a Japanese wii nor a different region game to try it with..

You Could Always try to find a cheap imported Wii game and Try out on that, it doesn't actually have to be a good game, just NTSC-J region.

As for the system you could always region change your system or find a cheap Wii, buy it and Region change it (assuming it isn't already Japan region).

DacoTaco commented 3 years ago

I did a small amount of research , though im only mentioning it for future records.

148 seems to end with this issue, so im closing that one.

i also took a look at starpatch, but apparently there is no 4.3J version for it. i assume this is why the original hack didn't exist and why my hash extension also fails.

i think the only way to fix this is to disassemble system menu and see what the hacks actually change (doh :( )

oscie57 commented 3 years ago

iirc currently selecting all of the region free options seperately does fix it. its what ive heard from a friend so might not be accurate, but no harm in trying right? its annoying to do but it at least sorts it

DraconicNEO commented 3 years ago

iirc currently selecting all of the region free options seperately does fix it. its what ive heard from a friend so might not be accurate, but no harm in trying right? its annoying to do but it at least sorts it

It's not accurate. The region Free options just straight up don't work on Japanese systems. people with any doubt should just region change to Japan to see for themselves.

oscie57 commented 3 years ago

oh alright

DacoTaco commented 3 years ago

i threw the 4.3E & 4.3J binaries against ghidra and compared the instructions/patch. i think an address offset was off. could somebody try the following on a japanese 4.3 system menu?

replace the region free master with the following (its currently disabled for jp)

[Region Free Everything - Master] maxversion=4610 minversion=512 amount=7 master=RegionFreeAllv1 hash=0x4082001C,0x38000036 patch=0x4800001C hash=0x4082000C,0x38000001,0x480001 patch=0x60000000 hash=0x38600000,0x48000048,0x38600001 patch=0x38600001 hash=0x40820028,0x3C608109,0x38800001,0x38639008,0x38A00003 patch=0x48000028 hash=0x4082000C,0x38600001,0x48000018,0x48 patch=0x60000000 hash=0x38000000,0x2C000000,0x40820014,0x387F patch=0x38000001 hash=0x9421ffd0,0x7c0802a6,0x90010034,0x38610008 patch=0x4E800020

and replace the jp hack with :

[Region Free EVERYTHING JP] maxversion=512 minversion=512 amount=2 require=RegionFreeAllv1 hash=0x38000000,0x2c000000,0x40820010,0x38000036,0x900daa08,0x480017 patch=0x38000001,0x2c000000,0x900DA618,0x38000032 hash=0x38000000,0x2c000000,0x40820010,0x38000036,0x900daa08,0x480014 patch=0x38000001

and no, i still don't know what the patch does exactly , but hey, if this is the fix... shrug xD

(information for me incase im wrong : 4.3E -> cmpne patched to stw r0, -0x5a28(r13), 0x3F0 from where the rest writes (0x5638). 4.3J -> now patched to stw r0, -0x59e8(r13), 0x3F0 from where the rest writes (0x59E8). if this is the fix, as it was with wii mini, i would need to get my hands on all system menu binaries from the wii mini...))

itsmattkc commented 3 years ago

Sorry for the late reply, I was planning to test this a few days ago but have been fighting off a cold.

I can confirm, with the new changes, enabling Region Free EVERYTHING JP works perfectly. Tested on a Japanese 4.3J Wii and a PAL copy of Mario Kart Wii.

DacoTaco commented 3 years ago

thanks for testing mattkc ! this verifies my own testing , so i can finally close this!