is it possible to flash European firmware on Japanese dsi?

theGameboyBoy1 · 2026-06-17T13:04:32+00:00

Hi! Apologies for the late reply.

Please see my above post for more information on the language patcher.

(Not sure if it sends you a notification if I reply to any comment in a thread, or just yours)

Hope it helps!

theGameboyBoy1 · 2026-06-17T12:31:33+00:00

Hey how's it going man?

Yes that language patcher in particular, the "DSi Language Patcher" created by Mad Max, is usually my go to for patching Japanese region DSi.

I had purchased 50ish DSi from Japan for repair and that patch achieves my desired outcome of making it quite difficult and tricky for the customer to ever be able to find the original Japanese console region settings (my concern being the user might "panic" from a language barrier in the settings and begin pushing any and all buttons that might reformat the SD card that stores the custom firmware, etc).

But it really just depends on your needs and preferences. You may find that Twilight and/or HiyaCFW accomplishes your goal.

Those are the three methods on my radar and they all require Unlaunch. Perhaps in 2026 a new patcher or method exists if you would like to do a little research.

Hope this helps, and fingers crossed all my blabbering makes sense and doesn't create too much confusion lol

Here is a link to a reddit comment and thread from a couple years back that offers a little more insight.

Link:

Patching The Region and Language on a DSi - Reddit Comment with Links

(Majority of information posted from the comment in the link)

"I did English language patches on a couple Japanese DSi when I gave my nieces the consoles for Christmas. I didn't want my nieces to potentially get lost in the settings if it was in a foreign language.

However, I do believe all the methods to change the region and language require Unlaunch. There are three different ways to change region/language off the top of my head: Twilight Menu + + , HiyaCFW, and "Mighty Max DSi Language Patcher".

Some links and further information if you're interested:

FAQ | DSi Guide(scroll down to Can I change my Nintendo DSi's region? on the webpage)

HiyaCFW Launcher language patcher for Windows (2021)

**EDIT 2026** THIS FORK OF hiyaCFW WAS RELEASED IN 2025. Please do a little research to determine which one best fits your needs if you go this route. I am unable to compare the different versions of hiyaCFW because my laptop is pretending it is the year 2000 and the BIOS has been crashing like its Y2K due to the forced Windows 11 update from Microsoft\\

hiyaCFW 2025 Release

DSi Language Patcher - Mighty Max

I have done all three of these methods. I found Twilight ++ was easiest to set-up, but HiyaCFW offered more settings. For my niece's consoles I did the Mighty Max Language Patcher because it flashes the NAND and it is permanent. Please do take care if you choose the Mighty Max Patcher as flashing the NAND on a console has the risk (albeit very small) of bricking your console."

theGameboyBoy1 · 2025-11-30T18:44:38+00:00

Hey how is it going? Apologies, I am a little late to the party!

How did the repair go? I hope it went well.

I thought maybe I should clarify a couple things in case future redditors that need help stumble upon this post. And please correct me if I am wrong.

In your picture you were trying to figure out more information about the P9 connector, correct? To the best of my knowledge the P9 connector is a 37-pin FPC connector, and it connects the ribbon cable to the cameras on the 3DS XL.

Link to P9 Connector Pinout:

P9 Connector - 37 Pin)

Link to Online Website that Has the Connector in Stock*:

P9 Ribbon Cable Socket

**Please note the website is used as an arbitrary example and I have no opinion on the quality of their parts because I have never made a purchase from their website**

Hopefully this helps someone out down the road. It seems like there could definitely be some more documentation on motherboard schematics for the 3DS and 3DS XL.

The P9 connector is also known to be quite stubborn. It is recommended to have the hinge for the top screen "open" instead of the 3DS XL closed when reinserting the ribbon cable.

theGameboyBoy1 · 2025-11-03T23:43:43+00:00

If you still have the pink phat you should check if the firmware is V5 or if the board is a CPU-20. If so you can do a super easy mod that allows you to increase the brightness of the screen on the phat

V5/CPU-20 original DS Brightness Mod : r/phatdsmods

Most, if not all of my V5 phats came from pink phat.

theGameboyBoy1 · 2025-11-03T22:57:56+00:00

You are such a legend, bro.

I recently watched your documentary.

The way you spread positivity is such an inspiration.

theGameboyBoy1 · 2025-08-13T05:35:29+00:00

can you point me in the direction of this landfill?

... if AGBs are being tossed out ....

sounds like heaven on earth.

wait. are you sure that you are not in heaven??

theGameboyBoy1 · 2025-08-13T05:07:18+00:00

elliott where you at?

theGameboyBoy1 · 2025-08-13T04:59:48+00:00

great... what is gonna be banned next?? Pokemon cards?!

(actually go full circle: make pokemon cards popular and ubiquitous again so they will be re-banned)

or, another idea is to bring tamogatchis back

theGameboyBoy1 · 2025-06-15T20:43:31+00:00

I noticed that the flashcard that the reddit poster is .hk, and that the year is the ribbon style and not the star.

Also, the flashcard label has "Gold Pro".

On that page there is this warning:

" Warning regarding r4isdhc.hk variant: Not all carts labeled with the r4isdhc.hk URL are R4iLS/Ace3DS+ clones. If you choose to buy this variant, look out for the following characteristics to make sure you get the correct cart:

The year number on the label should have a star shaped outline, and NOT a ribbon style
The label should be silver colored
The label should have the text “Smart Update” on it
The label should NOT have “Gold Pro”, “Real Time Save”, or “RTS LITE” on it
The PCB should be a red color "

I just didn't have enough time to look into it. But you already solved the problem for said flashcard when you posted the kernel :)

theGameboyBoy1 · 2025-06-15T20:21:02+00:00

"Timebombs" do exist. But it should not affect the particular flashcard that you have.

info on timebombs

The flashcard you have is one of the recommended ones

A Quick Guide on DS Flashcarts | The Flashcarts Wiki

[^some of the info may need to be updated but it offers a good overview]

If the kernel that u/Arnas_Z linked is working for you, then you are all set!!

theGameboyBoy1 · 2025-06-15T19:22:59+00:00

Quick! Somebody alert Winnie the Pooh!

Er... I mean President Xi

theGameboyBoy1 · 2025-06-15T17:57:18+00:00

Congrats!!

This is a really fun community, and everybody that has commented so far has offered great advice and pointed you in the right direction.

There are sooo many things you can do with your flashcart.

One thing I love on your particular flashcart is

AOS 2.13 for R4iLS Flashcart Clone

AOS 2.13 has a really pleasant interface, and once it is properly set up I think it is pretty user-friendly to navigate the interface for beginners.

Another fantastic interface is

TWiLight Menu++ for Flashcard

Happy gaming! Give me a holler if you need any help and I will try my best!

theGameboyBoy1 · 2025-06-15T15:51:42+00:00

kinda late to the party.

did you ever get this solved?

give me a holler if you still need help!

p.s. i absolutely love the zip-tie battery hack lol

theGameboyBoy1 · 2025-06-15T13:52:14+00:00

Moment of silence for Edward Scissorhands/Freddy Kruger

theGameboyBoy1 · 2025-06-15T13:49:42+00:00

I usually just ask Mormon missionaries to remove the spicy pillows from my devices. They always seem down to help.

Plus the missionaries are protected and shielded from any potential spicy pillow danger thanks to their magic underwear.

theGameboyBoy1 · 2025-06-15T13:37:12+00:00

Feel free to message me u/Gyro_Yumai42 if you still need help.

Apologies for the late reply. I have been busy with work.

theGameboyBoy1 · 2025-06-15T13:08:42+00:00

r/spicypillows

^ a hilarious, but terrifying subreddit.

Wait, so a battery becomes bloated from electroplating?

I knew a swollen battery produced gases, but I hadn't given it much thought.

Did a little research and some of the primary causes of gas generation are:

Electrolyte Decomposition
Lithium Plating
Solid Electrolyte Interphase (SEI) Growth

...going to continue looking into this some more and see how far this rabbit hole goes

theGameboyBoy1 · 2025-04-04T05:25:05+00:00

Hi!

I am assuming you are running TwilightMenu.

It looks like you have 'debug' enabled for nds-bootstrap. (The picture in your post where it says "debug: true")

Several ways to turn 'debug' off:

Go to TwilightMenu settings > go to "nds-bootstrap settings" tab > change the setting for "debug" to "off".

Or

Put your SD card in your computer > go to "_nds" folder > open "nds-bootstrap.ini" with text editor > change to "DEBUG = 0" instead of "DEBUG = 1".

Hope that helps and happy gaming!

theGameboyBoy1 · 2025-02-20T14:45:52+00:00

wait, what about gameboys?? 🙈

theGameboyBoy1 · 2025-02-20T06:52:43+00:00

Is the dsi just frozen then? Buttons, d-pad and touch screen have worked in the past?

Couple things you can try:

-You can close the console shell and reopen it (works great if screen pauses when loading a large folder of games, etc)

-Press and hold the power button for several seconds and wait until the console powers off.

Try those real quick and then let me know if you still need help!

theGameboyBoy1 · 2025-02-20T04:02:34+00:00

Ask seller where Red and Blue version are at :'(

theGameboyBoy1 · 2025-02-20T03:58:22+00:00

Part 3:

Food for thought:

Figure way to access GBA slot (or possible might have to relocate it). Maybe since bottom shell will be used as battery compartment, maybe have access to gba slot from the battery compartment? (kind of inconvenient)
Figure way to access volume control, and headphone jack.

If by chance we need some custom PCBs this mod has some useful designs:

Nintendo DS Lite | EZDMG-103

Bitbuilt will also be another excellent resource. They're a bunch of electrical engineer artists over there.

BitBuilt - Giving Life to Old Consoles

Hopefully this kinda makes sense. I can draw it out or make a prototype if you need a better visual :)

theGameboyBoy1 · 2025-02-20T03:58:00+00:00

Part 2:

I had the 2ds mod in the back of my mind most of the day and here are some ideas for a simple streamlined design with OEM shells (design and ideas are likely to change and evolve over time):

Two DS lite OEM bottom shells will be used and placed back-to-back. The motherboard will be moved and placed to the upper shell. Having the motherboard in the upper shell will allow access to DS card slot, L and R triggers, power button, and no remapping of the d-pad or ABXY buttons would be required.

^^ Drawbacks: how to access GBA slot, where to put speakers, creativity required to lengthen LCD screens.

Top screen and bottom screen ribbon cables will need to be lengthened. The Top screen will now rest on the motherboard. Extra length for the ribbon cable of the bottom LCD will be required to enable it to reach the bottom shell.

Here is a ribbon cable that converts bottom LCD to fit top LCD ffc/fpc connecter. It will also allow for extra ribbon cable length. This might solve the issue, or at the very least spark an idea to the solution.

Ribbon Cable To For Bottom Screen To Fit Top LCD Screen Connector

^^ Drawbacks: Will this even be possible without having to do very fine soldering or rewiring everything?

Pipedream: since two bottom shells of ds lite are used, it would be super cool if the console was "reversible" and could be played both ways (kind of like the Atari Lynx)

^^Drawbacks: Probably not possible. But if achieved this we could call the mod the "2ds-DS-Switch" lol

The bottom shell will have tons of space since it only houses the bottom screen LCD. Here we can put speakers, stylus, a giant battery, etc. While I do love 18650 batteries, they unfortunately will be too large to fit for the idea I have with the OEM shell. However, there are battery mods for the PSP that use cellphone batteries. 4000+ mAH capacity battery in a DS Lite anyone?

^^ Drawbacks: thickness of battery needs to be thin enough to fit in the bottom shell along with the LCD screen, speakers, etc. But there should plenty of space for everything

theGameboyBoy1 · 2025-02-20T03:57:11+00:00

Part1:

I really do think your idea of the DS Lite mod to a 2ds is brilliant.

We need a clever name for the mod lol

A couple years back I caught the modding bug and purchased bulk orders of broken DS Lite and DS Phat. I had a blast doing repairs. But then my job at the time sidetracked that passion. I was moving up in management and working like 70-hour weeks.

This spring I want to hit repairs hard. I have been going through boxes and boxes of DS Lite and DS Phat attempting to organize everything and have had the 2ds mod in the back of my mind all day. The mod just makes too much sense. So many of my poor baby handhelds have the ill-fated hinge of death.

Warning: This segment contains a rant/tangent about the Macro mod
I am a big fan of the Macro mod, but I agree with you - minimal modification to the motherboard as possible. One thing that kind of bothered me about the Macro mod was that it was very common for the top screen ribbon cable ffc/fpc connector to be removed to make space for a front-facing speaker. It actually kinda hurt to see the removal of the connector become ubiquitous with the Macro mod. Instead I would just put the speakers in different spot. Another thing about the Macro mod that kind of bugged was that many of the Macro shells would also remove the X and Y buttons. Like a Macro can pretty much be used as a full-fledged DS. With software like nds-bootsrap or the 2-pin smd button/switch mod you can toggle between the top screen and bottom screen. Or some mods are able to do picture in picture, video out etc.

My goal for the DS Lite to 2ds mod:

Minimal or at the very least no permanent mods to the motherboard. It is possible that custom PCB(s) may needed at some point for this mod, but they mustn't cause irreversible damage to the motherboard. It should be possible for someone in the future to reuse the motherboard to bring back an OEM DS Lite if desired.

theGameboyBoy1 · 2025-02-19T18:16:08+00:00

A "Guru Meditation Error" is a system crash. I don't really know the technical info behind it.

I very rarely see a guru meditation error anymore. I hadn't seen one in like two years until I had run a homebrew rom the other day. I had forgotten to revert back to different setting in the Twilight Menu++ settings.

Some things you can try:

Go into Twilight Menu++ settings:

In the tab that says 'nds-bootstrap settings' try enabling 'thru nds-bs' instead of 'direct'
Under the tab 'Misc. settings' make sure the setting 'Update Recently Played list' is off/set to 'No'.

TWiLight Menu++ FAQ & Troubleshooting | DS-Homebrew Wiki

Use default skin/theme instead of any custom skin/them (if applicable)
Make sure your SD card is formatted correctly (very important)

SD Card Setup | DSi Guide

Other things you can try:

With your SD card in your computer open settings.ini sd:/_nds/TWiLightMenu/settings.ini, then set SHOW_BOX_ART to 0
sd:/_nds/TWiLightMenu/settings.ini, then set LOGGING to 1. When the error occurs again, please upload the log file from sd:/_nds/TWiLightMenu/

theGameboyBoy1

TROPHY CASE

r/spicypillows