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Fixing Wii U stuck on Wii U logo

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ttttttrrrr

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Hi all,
I recently got a Japanese wii U console. I modded it using Tiramisu, and it worked well. After that, I tried to change the console's language from Japanese to English, by replacing some files using FTP.
It didn't work (the language remained Japanese), and when I restart my console it got stuck on the initial "Wii U" screen, and now my console won't load.
I backed up my Nand before modding my console.
I read many threads here regarding similar bricks and Nand restoration, but in each of them a different solution was discussed so I'm not sure what would apply to my case.
Is there any solution that does not require hard modding that could solve my issue?
 
Do you have a way of using UDPIH? (The two options are a Raspberry Pi Pico or a moddable Nintendo Switch). You should be able to get into wupserver there, and transfer Japanese files back to the console from your computer to get it to boot. The reason the text was still Japanese before you rebooted I think is because you HAVE to restart to get the system to reload the language files.

The most likely problem is that the transfer didn't complete properly and left a half-transferred system menu text file.
 
Yes should be fixable with UDPIH. Do you want to just change the language or do a proper region change?
If you want to do the region change, use UDPIH to install ISFShax, from ISFShax you can then erase the MLC and reinstall the system with the US or EU files.
 
SDIO said:
Yes should be fixable with UDPIH. Do you want to just change the language or do a proper region change?
If you want to do the region change, use UDPIH to install ISFShax, from ISFShax you can then erase the MLC and reinstall the system with the US or EU files.
Click to expand...
I just need to point it out, in case it wasn't obvious from this message alone, you'll lose everything on the Wii U, mainly games and save data. Since you got the console relatively recently, I'd assume you don't care. Just again, as a warning.
 
SDIO said:
If you want to do the region change, use UDPIH to install ISFShax, from ISFShax you can then erase the MLC and reinstall the system with the US or EU files.
Click to expand...
Apologies for hijacking the thread, but could you please elaborate about this a bit more?

As the OP, I am trying to change the region of my Japanese Wiiu and I though ISFShax only allowed to change the region on a clean rednand. Lazr1026's guide was the only method working on the sysnand I was aware of.
 
Thank you both!
I have just ordered a Raspberry Pi Pico. Should I follow this guide, or since I have backed up my NAND I should do something else? https://gbatemp.net/threads/cbhc-unbrick-guide-without-soldering.613371
SDIO said:
Yes should be fixable with UDPIH. Do you want to just change the language or do a proper region change?
If you want to do the region change, use UDPIH to install ISFShax, from ISFShax you can then erase the MLC and reinstall the system with the US or EU files.
Click to expand...
I just wanted to change the language. It seemed more simple than changing the region, but I guess it didn't work that way.
Should I install ISFShax after I will restore the Japanese Wii U menu with UDPIH?
 
Ghostwalk said:
I though ISFShax only allowed to change the region on a clean rednand.
Click to expand...
You can also do it on a "clean" sys nand by erasing the MLC and SCFM in minute. It would also work without erasing, but then you still have the other regions titles installed.

ttttttrrrr said:
Should I install ISFShax after I will restore the Japanese Wii U menu with UDPIH?
Click to expand...
You can launch the ISFShax install from UDPIH, not need to fix the broken system first.

After ISFShax is installed, adjust the sysprod.xml, you can do that with the wupserver. Once that is done use minute to erase the mlc and scfm and follow the MLC rebuilding instructions with the files of the target region.
 
If you don't care for the data on the console, I would suggest you do the following:
rebuild (including erasing) the MLC with region you want your console to have. For that just follow the guide linked in my signature: Upgrade Wii U Internal Storage / replace failing eMMC

Once it is installed, boot the recovery with the Pico again and fix the region there, it should have an option to align the reion in the sysprod.xml with the installed menu
 
Thanks again.
I actually tried to use MLCRestorerDownloader but it keeps telling me "Common key not found. Enter it here", and I'm not sure what to enter... Also, just making sure- I need to download the USA MLC in order to change region, right?
 
If you want to change it to USA region then yes. You have to copy the otp.bin from the SD card to the MLCRestorerDownloader directory, it will then get the common key automatically from that.
 
Thanks, it did work and I just noticed you mentioned it in the guide itself.
I read the guide and I'm not sure which media you want to use as MLC. I rather refrain from soldering.
I don't care about changing the region anymore, I just want to get my console to work, would it be easier to try and replace corrupted files using wupserver? (As suggested here for example- https://gbatemp.net/threads/wii-u-mlc-language-files-change-brick-save.620948)
 
I'm not sure I understand- are you saying that since my eMMC is still working I can Erase MLC and then install fresh MLC on it? So I only need 1 SD card that will go in the front slot, and not an additional one for the MLC replacement? (Sorry for the basic questions and thank you for your help, I don't have a lot of knowledge)
 
Last edited by ttttttrrrr,
Just rebuild the mic and after that you can use the debug region option in the recovery to fix the region in the sysprod.xml so you don't need to manually edit it
 
I followed the guide, and after selecting "Patch (sd) and boot IOS (slc)" in minute, I received the following message on screen. The light remained purple and wasn't blinking at all.
It seems that it doesn't find the OTP, what did I miss?
No wafel_setup_mlc.log was written to the SD card.

IMG_3806.jpg
 
Last edited by ttttttrrrr,

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