1. Mighty Max

    OP Mighty Max Newbie
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    UPDATE AVAILABLE at bottom of this post


    [Release] DSi Language Patcher
    A JPN DSi to EUR languages patcher.
    ==============================

    The Language Patcher is a small tool for running on a DSi, which takes the
    original App-Launcher and patches it to display european languages. It also
    passes this information to apps started, so that - if possible - they show the
    same language.

    I have written this little patcher because I bought my son and his friends
    four DSis cheap from JPN. It doesn't matter in unlaunch, but if one of the kids
    removed the SD card, the non japanese and non-tech parents were unable to
    understand and fix the problem.

    WARNING:
    --------
    Use on your own risk.
    This tool does some changes to the NAND. This will olways come with a risk to brick
    your DSi. I tried my best to keep that risk as low as possible by doing the
    actual work in RAM and only accessing the nand for write operations when everything
    else went good.

    However in the worst of cases, your nand will not be valid anymore ynd you will
    need a hardmod. so BACKUP YOUR NAND and have the option to HARDMOD READY to go.


    Prerequisites:
    --------------

    * A japanese DSi
    * Have unlaunch installed
    * Plug in the DSi into the charger
    * SD Card
    * Have your NAND backed up, in case anything goes wrong.

    Process:
    --------
    1. Put the attached "Patcher.nds" onto your SD Card and insert it into the DSi.
    2. Start Patcher.nds from unlaunch
    3. Check that there are no errors displyed. If you have errors Patcher.nds will
    not continue
    4. If Patcher.nds instructs you to plug in the power cord. do so. But you should
    already had it as of the prerequisite. The Pacher will not continue unless
    you have it plugged in
    5. The Patcher will wait for you to press [A] for the actual write operation.
    You can power off your DSi at any time before pressing [A] but you need to
    letit run through once you did press [A]
    !CAUTION!
    Be sure that everything worked smooth till here. There is always the
    possibility that for some unforeseen reason (arbitrary power failure,
    pink elephants ...) there is an error. So be sure you have a nand backup and
    could hardmod to recover.
    !CAUTION!
    6. The write operation is designed to ba as short as possible. You should have
    an ALL DONE message.
    7. Turn off the DSi
    8. Enter unlaunch ([A]+[ B]+ Power on) and select "nand:/launcher.dsi" as app to
    start on load error. Save the options.
    9. Launche "nand:/launcher.dsi" You will notice that the screen is already english.
    10. Start System Settings from the launcher and change your language/country
    11. You are all set


    FAQ:
    ----
    Q: I heard unlaunch will unable to be installed/uninstalled if the FAT was changed
    by homebrew. Will I have problems?
    A: all will be fine. Unlaunch checks the internal copies of the file allocation
    tables and will stop on missmatch here. While libfat will only work on the first
    table, the patcher will use the others as staging, updating them after all other
    things went right.

    Q: When I start the original japanese launcher, my settings are all reset. Is this
    normal?
    A: Yes, the japanese launcher will do a sanity check on various configuration
    settings, like the touch calibration or the language. If it detects the language
    setting outside of the japanese region, it will assume the settings are corrupt
    and asks you to redo them. The pathed up launcher wil ignore the language, but
    keeps verifying the other fields.

    Q: Some applications are still japanese.
    A: While the launcher reports the started apps the new language, it does not
    change the actual reagion the DSi is programmed to. The files are kept
    unchanged and any ap reading those will use the japanese region settings.
    Also: the installed version of your app might be japanese only.



    PS: Do not contact me about piracy. The sole purpose of this tool is to increase
    the accessibility to my (JPN) DSi for my kids and their friends. You can use it now
    too.
    Please respect the work of developers. They need to earn money as we all do.

    :edit: Formatting



    UPDATE:
    I have attached a new version.

    Changes:
    • added another method to read out the ConsoleID
    • source Launcher Regions are now allowed to be JPN, US, EUR and AUS
    • target Launcher Regions can now be selected
    • added a basic UI (progress bars, more prominent info on power plug in, etc ...)
    • added clearer indication of success and error with reboot on keypress
     

    Attached Files:

    Last edited by Mighty Max, Mar 18, 2021
  2. YourKalamity

    YourKalamity Newbie
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    Nice work! Adding to lazy-dsi-file-downloader!
     
    Robz8 likes this.
  3. Costapk

    Costapk Member
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    (Sorry if this is Necrobumping) Is there a way to make the tool change the files to US?
    Also thanks for the tool! Got a JP DSi recently and this tool will really help!
     
    Robz8 and banjo2 like this.
  4. Pk11

    Pk11 A catgirl with a DSi
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    I assume it'd probably only need changing one variable in the code or so, but there's not really any reason to make it US afaik since Europe has all the same languages and more, and Unlaunch already removes the region locking.
     
  5. Mighty Max

    OP Mighty Max Newbie
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    I have released the Source code of the tool in the first post.
    It was also verified that this process works also the other way around (allthough source modification not included) from an US DSi to JPN.
    The source code can now be found on githu: DSiLanguagePacher
    (Board does not allow me to link it?)

    There are still several points to clean up. Mostly regarding included/used prior work and it's attribution.
    If anyone's code was used (it was not always clear who is the original author) needs attribution ASAP, please let me know.
     
    Robz8, Pk11 and banjo2 like this.
  6. leerz

    leerz GBAtemp Advanced Fan
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    tested this and works,

    word of warning to users, or maybe its just me
    don't open the launcher dsi inside titles or the system settings from the file menu,

    after selecting the english language and trying out those 2 files, the launcherdsi will no longer boot.


    i tried setting launcher dsi as default but it just black screens on me


    You can fix it by writing your nand backup with fwtool

    Also to Op
    Just an observation
    Assigning it to no button results in black screen and assigning it to A Button works fine.
     
    Last edited by leerz, Mar 9, 2021
  7. Mighty Max

    OP Mighty Max Newbie
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    Could you explain the process a bit more that lead to the problem?
    After using the launcher.dsi and using the settings menu in the title list you should be able to set the language multiple times.
    Once you go back to the original launcher it should then report a corrupted setting and ask you to recalibrate the touch & enter the name/settings like you do on a vanilla console.

    I'll try that, right now I have it on fault or any button combination, but I never tried it on default startup. I wonder what should be different here. I'll check.
     
    banjo2 likes this.
  8. leerz

    leerz GBAtemp Advanced Fan
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    Sorry for being unclear
    It happened once but hadn't replicated it yet

    1. Complete all the instructions as stated on your guide
    2. open (via unlaunch) the launcher dsi inside the nand titles instead the one from nand launcher dsi (there should be 2 after doing the guide)
    3. open the system settings title from unlaunch will also result to this
    4. i will try on a different dsi some other time

    1. yes, weirds me out a little, having it not blackscreen would be excellent because that would complete the dsi region change altogether, formatting, changing language works, although there's no main menu music
     
  9. Mighty Max

    OP Mighty Max Newbie
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    Ran it through several of my DSi but could not reproduce.
    Give me a shout if you can find a way to do it again.
     
    Last edited by Mighty Max, Mar 18, 2021
    banjo2 likes this.
  10. pietempgba

    pietempgba GBAtemp Advanced Fan
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    Both of my Japanese DSis are giving me invalid CID. One of them is on 1.0J and the other is on 1.4J. both have unlaunch 2.0 on them.
     
  11. Mighty Max

    OP Mighty Max Newbie
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    Is that on the hardware directly or is this in the emulator first?
    Did you start the Patcher right out of unlaunch, or did you start it via TWiLight Menu++ or alike?
    Which version of the Language patcher did you use?

    I bringing one of mine back to stock FW 1.4.1J and will try it again in a few mins to check.

    :edit: Can confirm. Will be fixed asap

    — Posts automatically merged - Please don't double post! —


    Sorry for that problem. The new method to retreive the ConsoleID got some problems and is disabled in v2.0rc4.
    Updated the files in the first post.

    Thank you for the report pietempgba
     
    Last edited by Mighty Max, Mar 19, 2021
    pietempgba, banjo2 and leerz like this.
  12. pietempgba

    pietempgba GBAtemp Advanced Fan
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    I started it from unlaunch on the real hardware
     
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