microsd card making 3ds/2ds not work?

[natakuy]

So I just got my (homebrewed) New 2DS XL back from an official repair from Nintendo, and it works, but not when the microsd card is in. When trying to turn it on while the microsd card is in, the blue light goes on but nothing happens. When inserting the microsd card after I already turned it on, it just freezes. I thought at first that it was just due to the repair being faulty or whatever, but I put the microsd card into my original 3DS XL and the same happened. I don’t have a computer on me right now so I can’t check whats in the card on there but I’m scared that they did something to the card because it was homebrewed.
also there was tape on the bottom of the 2ds that just said “SD”
so does anybody know why this is happening/any fixes?

 

[raxadian]

Also if it is a SanDisk card just outright buy a new one from a different brand instead.

 

[natakuy]

It is not a SanDisk card, although the card that these files were originally on before the repair messed things up was SanDisk. What's wrong with SanDisk?

Post automatically merged: May 30, 2024

Anyway, I deleted the "Nintendo 3DS" folder and let my 2DS create a new one, as instructed. After turning the system on to let it automatically create the new folder, it said something about creating data for the card, which I'm guessing relates to that folder but I don't remember it saying that before.

So, what's next? All I was told is to then reinstall my games, but my 2DS still doesn't have the homebrew apps needed to do so installed.

 

[raxadian]

What's wrong with SanDisk?

Very bad quality and it seems a lot of fake and bootleg sd cards fake being SanDisk.

 

[natakuy]

The best solution at this point would be to start over with a fresh "Nintendo 3DS" folder, re-install each of your games, and then copy the save data out of your backup.

What am I supposed to do between that first step and the rest? Am I supposed to delete all the homebrew folders on the card and mod my system again, so I can re-install my games?

 

[natakuy]

I need clarification. Now that I've started over by having my 2DS create a new "Nintendo 3DS" folder, am I meant to delete all other folders on the card and jailbreak my system again from the beginning of the process?

 

[lone_wolf323]

I need clarification. Now that I've started over by having my 2DS create a new "Nintendo 3DS" folder, am I meant to delete all other folders on the card and jailbreak my system again from the beginning of the process?

No. You will be following https://3ds.hacks.guide/restoring-updating-cfw.html with restoring whats needed

 

[natakuy]

No. You will be following https://3ds.hacks.guide/restoring-updating-cfw.html with restoring whats needed

That page says that it is required to have the latest release of Luma3DS installed, which I surely do not have. So, do I have to install that and place it in the root of the card before proceeding with that guide's steps?

 

[natakuy]

Well, that rules out the obvious, I guess.

The best solution at this point would be to start over with a fresh "Nintendo 3DS" folder, re-install each of your games, and then copy the save data out of your backup. You can identify what folder is associated with each game using https://hax0kartik.github.io/3dsdb/ . For instance, the E version of Harvest Moon: A New Beginning has a title ID of 00040000000EAE00 , so the game data is stored in Nintendo 3DS\[id0]\[id1]\title\00040000\000EAE00 . Save data is typically stored in a file with a ".sav" extension.

Some games, namely the Pokemon games and Animal Crossing, can detect save file tampering; for those games you will have to back up the save data with Checkpoint and then restore it right away after copying the save data out of your backup.

Alternatively, it might be possible to rebuild the 3DS database files using https://gbatemp.net/threads/release-godmode9-scripts-megathread.482150/page-9#DATABASE and thereby avoid having to re-install everything, but that might just make things more complicated.

Whatever you do, do not do a System Format, because that will change the encryption key and render your old save data unreadable!

I have another modded 3DS family system: an original 3DS XL. Can I just reinstall my games on there, and then copy the save data from my 2DS XL's backup to my 3DS XL's SD card?

If so, how exactly am I supposed to go about this? A game I had installed (and did indeed play and create save data for) on both my 3DS XL and 2DS XL is Dr. Mario: Miracle Cure, and that database says that the game's title ID is 000400000013BB00. I found a folder in my 2DS XL's backup with that as its name, with a file inside which is named "00000001.sav", so that seems consistent with what you said. So, I would assume that I can find a similar folder on my 3DS XL's SD card, and I can move the .sav file in the 2DS XL's 000400000013BB00 folder to the 3DS XL's equivalent folder, and regain access to my 2DS XL's save data for the game that way. However, I searched for the same string of letters and numbers in my 3DS XL's SD card, and there were no results. So, I am unsure of how to go about this.

 

[Joom]

I searched for the same string of letters and numbers in my 3DS XL's SD card, and there were no results. So, I am unsure of how to go about this.

If you can't use Checkpoint to dump it, it's likely lost. The contents of the Nintendo 3DS directory are encrypted using an algorithm that's unique to the console's motherboard. This is why sending it in for repair bombed it, because Nintendo usually replaces the board when doing repairs. You can try following this guide, but I can't make any promises you'll get far.
https://projectpokemon.org/home/forums/topic/57025-managing-3ds-saves-injecting-encrypted-saves/

 

[natakuy]

If you can't use Checkpoint to dump it, it's likely lost. The contents of the Nintendo 3DS directory are encrypted using an algorithm that's unique to the console's motherboard. This is why sending it in for repair bombed it, because Nintendo usually replaces the board when doing repairs. You can try following this guide, but I can't make any promises you'll get far.
https://projectpokemon.org/home/forums/topic/57025-managing-3ds-saves-injecting-encrypted-saves/

So then what post #52 (the one I most recently replied to) tells me to do would not work?

 

[signer-ink-beast]

So then what post #52 (the one I most recently replied to) tells me to do would not work?

That will work. You're basically starting over from scratch.

Is there a gm9 folder in your previous backups, from before you sent your 3DS to Nintendo, and an out directory in there? Is there an essentials.exefs in gm9/out? That would be useful for recovering any old saves. I honestly got confused and had trouble following the thread. Did you backup anything else besides the "Nintendo 3DS" folder?

If not, you're probably out of luck. Last ditch effort is what is suggested in post #69. No guarantees.