I don't know if there is possibility. but i hope so.
you can just paste out your current fw version, and let other find a game with not too much later fw version.
since playing a game would force you to install its fw (if you got a older version), you would not goes too long - if you don't think keeping 3ds away from newest updates is essential, you can just connect to 3ds eshop and let it download the update (not a good suggestion, if you got interested in hacking it after then). anyways iirc there seems to be no one tried that before (oh well you can try contact someone on efnet.org #3dsdev to see if such a method can been tried already).
if you have the proper ability you can try it, though.

 

wow, a possible way to downgrade. even though it is hardware only, it is still great news.

 

Very nice, but could someone implant a custom firmware like this or no? Also it seems you had to quite a bit of desoldering huh?

 

THIS is my type of info, hmmmm what a fix. Thanks for the share. To share as I have not seen it, sort of related, deadlyfoes pointed out the Wii U nand (eMMC) can be read like an SD card. It is on wiiubrew. I have not found anyone who will admit to trying it. This is great for the 3ds scene.

 

not at all - they might removed the flash from a broken unit to easier trace the signals. The testpoints where you need to solder to are very convenienlty reachable -- its not even required to take the mainboard out. Interestingly, my assumption proved correct: the testpoints 249 to 253 have the same functionality in the XL as in the normal version of the 3ds. Someone might want to look for and try TP 260 on the normal 3ds version (CLK signal), because it could be easier to solder to than the other pin on the back of the board.

 

Why not sharing the pics directly? This is no problem.

My mod: http://s.gullipics.com/image/3/3/o/udht0w-krp61m-ud9q/1370975084359.jpeg
My mod in action (currently i don't own male/male jumper wires): http://s.gullipics.com/image/2/6/x/udhkak-ksyl7g-qm2c/PicsArt1373047662585.png
NAND as removable drive in Windows (german): http://s.gullipics.com/image/n/e/l/udhkak-ksym2a-2j42/3DSNAND.png


@lightenup:

I will look at it. I don't think, that TP260 is CLK on the 3DS, but we will see.


€:

On the 3DS TP260 doesn't exist.

 

"ichichfly said: ↑,no the NAND is encrypted with an key that is different for each 3DS.Someone on gulli had this "hardware mod" for some time http://board.gulli.com/thread/1722015-angeblich-erste-flashkarte-die-3ds-roms-abspielen-kann/8/ (German) there is also a picture of the mod somewherehttp://board.gulli.com/thread/1656020-ot-thread-aka-die-laberecke/ (somewhere in the first 300 Pages)
add: why is there no link to http://www.3dbrew.org/wiki/Flash_Filesystem in the news on the front page?

I was talking about what might happen in the near future but I get it I guess that I let my excitement take over :-)

 

Do you need to ground 3DS's internal resonator before dumping nand?

And what tools you guys using for reading/writing? I think Winhex will do the job, but maybe you can suggest better alternatives?

 

Hi all,

I just finished the hardware mod on my 3DS and dumped an image. But how can I verify that it was successful without taking the risk of flashing the image back to the target?

win32diskimager ended with a successful message, 2 different dumps has equal content and file size is always 1.000.341.504 bytes. Opening it with a hex-editor shows "NCSD" at 0x100, a larger area of 0x00 from 0x200-0x012DFF and another lage area of 0x00 from 0x059400-0x23FFFF.

Can somebody confirm that, or has other key values in the image?

BTW: I attached some photos of my solution of the MMC-adapter - perhaps someone find it useful...

 

I can confirm those values; the zeroed area going until 0x23ffff starts in my dump already at 0x44e00. That's a 3dsxl, 4.5.
However, for now I am not aware of any test (beside (upgrading and) writing the dump back) that really guarantees that your flash dump is valid.