Do you remember the debug card AGING-NTR also known as NTR-EVA which had some tests for the NDS?

CTRAging, the 3DS equivalent to AGING-NTR, is an app used for testing the hardware at the factory, before it is approved for selling.
And after the tests, it uninstalls itself as well as other test apps, such as DevMenu.
However, uninstall isn't equal to fully deleted from NAND, that means:

YOU PROBABLY STILL HAVE IT IN YOUR FAT16 PARTITION OF YOUR NAND.

Great right!? Well.... no. Each time the console writes to NAND, it has a chance to overwrite it, because since it is no longer installed, the 3ds doesn't care about overwriting it. That means, the most used the system is, less probabilities to still have it in NAND. As stated here, sometimes only the TitleID is kept in NAND, other times its header, or nothing. I tried with my two o3ds, the first, which went throught many updates (5.0 to 9.2), didn't have it at all. However, my 2nd 3DS, which went from 1.0 to 4.5 with a card update (yes, I know I shouldn't have to update), only had the TitleID (000400000F980000) between a lot of FF.

If you want to try a working copy on your N3DS (O3DS crashes), you can go to pastebin and search for 3DS ctraging.

(29/05/16) The N3DS dump is working, it has to be launched from DevMenu. Video by @CrispyYoshi (thanks )



Holding START shows a menu!

Warning: Spoilers inside!

So if you feel like you have a OLD 3DS which never updated, and hasn't been used much, you may be lucky. Dump and decrypt your fat16 partition and search for the TitleID, here it is how:

1- Use Decrypt9 to dump your nand fat16 xorpad.
2- (Dump your NAND if haven't already, the older the copy is, the more probabilities)
3- Download this tool
4- Place the nand file and the xorpad in the same folder as the tool. Name them nand.bin and fat16.xorpad
5- Run "run.bat"
6- If it creates a file called "000400000F980000.ncch", you may be lucky, put that file on your 3DS SD, run Decrypt9 and select NCCH Decryptor. If you can read "Exheader / Exefs / Romfs: whatever / OK / whatever" let me know

 

would this be a legit signed thing? and it uninstalls devmenu? seems like it could lead to something (or I'm just hopeful)

 

So the N3DS one is dumped?

 

You already need to have kernel to install legit cias, so there is no point to use ctraging to get kernel access, and anyway, all it is supposed to do is make a factory setup.

 

Do you have a working ticket for it? or should i make a fake one? i'd test it on my n3ds

 

I just tried it on both sysnand and emunand.. same result.
It boots up and gets past the logo, it sits at a black screen for a second, then you see the backlight come on for a second, then I get the 'power button error'

 

Maybe it needs the 178MB mode? Just a guess, though.

 

Yes, that'd be prime material... Well, except there's a CTRAging dump already, but maybe there were more factory titles, so whatever.

Note since the NAND keys are console-unique, you'll also need a dump of the FAT16 xorpad for CTRNAND.

 

My nand dump from a brand new console is clean, didn't find the app there

 

More like "you probably don't have it, but you could try anyway"