[RELEASE] TWLTool – Nintendo DSi downgrading, save injection multitool
Developer WulfyStylez at GBATEMP released “TWLTool” which can be used for downgrading system titles on Nintendo DSi/DSi XL, save injection to NAND and probably much more. It requires hard-modding and a way to get your NAND CID (possible through a savegame hack and probably other methods).
Nintendo DSi is the successor to Nintendo DS/DS Lite. It has a better screen, camera, increased RAM, faster CPU, e-shop and many more features. Unfortunately too few games made use of the additional features of DSi. Probably because of that, too few hacks were made for the DSi mode exclusively and most of them are blocked at latest 1.4.5 firmware. You probably heard about Sudokuhax (a DSi mode exploit) which is no longer available.
Due to the recent developments on 3DS hacking scene, luckily we now know more about DSi NAND structure. TWLTool makes it possible to downgrade system titles and savegame dumping/injection. This means you can inject saves directly to your NAND and make Sudokuhax or any patched DSi exploits work again.
Being restricted to hard-mod and a savegame for a special game will seriously decrease the number of users who will take advantage of this hack but i am pretty sure it will let developers search the system more and who knows we might take advantage of this without a hard-mod one day. Being a proud owner of a 1.4.5 DSi XL, i am very excited about TWLTool and what it will bring in the future. Also any development on DSi will positively affect 3DS too as it has all the capabilities of a DSi inside of it.
Source and more info at GBATEMP

First. Boners
First!! finally!
haha
Welp, I’ll still believe that I’m first (Even though I’m not)
jesus Annie your link got me good. I’m embarrassed. My T.V. was way too loud.
http://previews.123rf.com/images/cteconsulting/cteconsulting1008/cteconsulting100800135/7614204-An-image-of-a-denied-stamp–Stock-Vector-seal.jpg
By 8 minutes too, you are one slow meth head. XD
So this means a GBA emu is possible on DSi?
No, there is no AGB FIRM on DSi/DSi XL unlike 3DS. So even though DSi/DSi XL has all the GBA hardware except for the cartridge slot, we will probably never see something like that.
Your best bet is software emulation which is not very good.
Actually, I have GBA emulators on my DSi via a special flash cart called “iPlayer.”
It might be worth looking into how that works, since I’m not sure if it’s a standalone emulator
that’s 100% homebrew or if it makes use of some of that leftover hardware.
That probably falls under “software emulation” but I think games run pretty great on it. I don’t notice any slowdown or framedrops.
it is a software emulator. iPlayer is the cart that was released Supercard DSTWO, it has a cpu inside which is faster than the DS itself. Still not perfect gba emulation though.
Software that takes advantage of the extra hardware so it would be a hybrid if you ask me as it doesn’t rely on just software. This can’t be done with software alone.
The DSi was actually broken forever ago. It’s just that there were pretty much no interest for the past 5 years or so.
agreed. There isn’t enough interest, probably because dsi is a half-gen.
Still it is great to see sudokuhax running on latest 1.4.5 firmware. I love DS emulators on steroids. 🙂
I would like to have custom themes on my dsi. i dont like having to boot my ds to that boring looking menu in order to get to my flashcart.
This is really freaking awesome to me TBH. I have been happily rocking my DSi with Supercard DSTwo for years. So this is just amazing. I hope a software solution can happen but even though the 3DS scene has spurred it I don’t think it will ever evolve that far. I gave my kid my 3DS when I got her a 2DS (I liked it better TBH and kept it to give her the 3DS) but I still use my old school DSi (I won from a claw machine at an amuzment park of all places for $5) the most.
BTW to the guy that uses the iPlayer its hardware that allows GBA on the DSi BTW as it uses the built in CPU of the second gen flashcards. The DSTwo has all the features of the iPlayer and more. SNES & GBA are nearly flawless. The only GBA game I have ever seen any lag on is Golden Sun and Pokemon but even Pokemon is easily fixed with a few edits to an ini and a third party app.
The DSTwo really makes use of the DS to its full potential and more thanks to the onboard CPU. I play MP4/AVI @ 640/480 with no issues.
Coupled with a badarse 128gb microSD card its simply amazing. My DSi sees more use then my Vita.
It is great to see a DSi fan here. I can go on and on how DSTwo + DSi XL is the best combo ever. DSi XL has a great screen, DSTwo supports even the h264 codec. If i can get sudokuhax installed on my DSi XL, i will enjoy DSi homebrews too and it will be the icing on the cake.
I also use SudokuHax + DSTwo on my new 3DS XL, so i can have DS/DSi/3DS homebrew on one device. Though i still prefer my DSi XL, it is just better.
will these make me play dsi waresz gaems? I like to play Shantae Risky’s Revenge on my DSi XL..
nope, it won’t. This way you can install sudokuhax and have your homebrew without a flashcart.
DSiWare shop is still open and you can buy stuff from there. I bought a few things and they were well worth the price.
can you downgrade from 1.4.5E to 1.4E with this?