Homebrew Corrupted Files? Unable to boot or read SD card

AngelArtifact

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I've recognized I've probably made a big mistake and have probably lost access to everything on my SD card and/or 3DS but,, I'm still hoping I can get a solution for this¿,,

Installed homebrew and several apps and games on a decent sized 16GB SD, everything was great, but I wanted to go bigger and used a 256GB Micro SD that was laying around.

The 256GB was relatively cheap and unbranded, and was bought from eBay, looking at it noW you can tell it was most likely fake, and it iS after multiple tests. It worked well on multiple mobile devices I owned though, so I didn't spare the thought that it was a bad card.

Made multiple copies of my existing files onto my desktop and moved original files from the smaller to larger SD.

Inserted it in the slot in it's adapter, pressed the power button, but all the system did was flash the blue light once and die out. Made sure the problem wasn't write protection or a dirty reader slot. Made sure a boot.firm file was present. It simply wouldn't boot. Taking it out allowed the 3DS to finally turn on, but putting the SD card back made it briefly freeze (was probably just reading the big ass thing), until all my games popped up on the menu.

Problem was it would display only a handful of my games' title screen (it's music and title icon that usually spins on the upper screen would work), while most others didn't (wouldn't show up or play sound at all). In Data management, the majority of my games would show a gray box with a question mark (where the title icon would show), no title name, and a 0 where the amount of blocks it took would take up. Exiting out of System settings even shut down the console. Attempting to play these 'blank' games resulted in an error stating "The SD card has been removed", leaving the choice to reboot the system (but instead of doing that, it would shut down).

A certain discord chat I was in wasn't much help, so I just let it be, because a couple days later I got a 32GB card, thinking I could just move the data onto something a little more reasonable sized. The same problems occurred, and after a bunch of attempts of moving the data back and forth I gave up.

Moved the files onto my desktop, (I think I deleted them), and cleared out my 32GB, thinking it was just simply corrupted files messed up by the fake micro. I just tried to re-homebrew the system again, (but I wasn't sure if you needed to remove CFW or something,,).

Tried to follow a guide when I saw the Nintendo 3DS folder was "corrupted and unreadable". Windows was able to fix it, but my 3ds would be unable to read the file. Deleting it and letting the system recreate the file would work, but removing and placing the SD into my PC would always register it was corrupted, along with it not being read at all.

Tried having my system read those other SD copies on different SD cards, they all failed to be read. I want to somehow salvage my game saves, but I have no idea if they're corrupted or something. Having those files on the micro SD was probably the worst mistake, so I wanted to try to format my console. But I'm not sure if it's safe to do so, with CFW and all, and I'm not sure it'll resolve this problem either. Overall, is there something I can do to fix this?¿
 

Shadow#1

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I've recognized I've probably made a big mistake and have probably lost access to everything on my SD card and/or 3DS but,, I'm still hoping I can get a solution for this¿,,

Installed homebrew and several apps and games on a decent sized 16GB SD, everything was great, but I wanted to go bigger and used a 256GB Micro SD that was laying around.

The 256GB was relatively cheap and unbranded, and was bought from eBay, looking at it noW you can tell it was most likely fake, and it iS after multiple tests. It worked well on multiple mobile devices I owned though, so I didn't spare the thought that it was a bad card.

Made multiple copies of my existing files onto my desktop and moved original files from the smaller to larger SD.

Inserted it in the slot in it's adapter, pressed the power button, but all the system did was flash the blue light once and die out. Made sure the problem wasn't write protection or a dirty reader slot. Made sure a boot.firm file was present. It simply wouldn't boot. Taking it out allowed the 3DS to finally turn on, but putting the SD card back made it briefly freeze (was probably just reading the big ass thing), until all my games popped up on the menu.

Problem was it would display only a handful of my games' title screen (it's music and title icon that usually spins on the upper screen would work), while most others didn't (wouldn't show up or play sound at all). In Data management, the majority of my games would show a gray box with a question mark (where the title icon would show), no title name, and a 0 where the amount of blocks it took would take up. Exiting out of System settings even shut down the console. Attempting to play these 'blank' games resulted in an error stating "The SD card has been removed", leaving the choice to reboot the system (but instead of doing that, it would shut down).

A certain discord chat I was in wasn't much help, so I just let it be, because a couple days later I got a 32GB card, thinking I could just move the data onto something a little more reasonable sized. The same problems occurred, and after a bunch of attempts of moving the data back and forth I gave up.

Moved the files onto my desktop, (I think I deleted them), and cleared out my 32GB, thinking it was just simply corrupted files messed up by the fake micro. I just tried to re-homebrew the system again, (but I wasn't sure if you needed to remove CFW or something,,).

Tried to follow a guide when I saw the Nintendo 3DS folder was "corrupted and unreadable". Windows was able to fix it, but my 3ds would be unable to read the file. Deleting it and letting the system recreate the file would work, but removing and placing the SD into my PC would always register it was corrupted, along with it not being read at all.

Tried having my system read those other SD copies on different SD cards, they all failed to be read. I want to somehow salvage my game saves, but I have no idea if they're corrupted or something. Having those files on the micro SD was probably the worst mistake, so I wanted to try to format my console. But I'm not sure if it's safe to do so, with CFW and all, and I'm not sure it'll resolve this problem either. Overall, is there something I can do to fix this?¿
TL;DR
 

Shadow#1

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Moved SD card shit from one card to a fake one, files are corrupted, system shows it probably is too. Want to format 3DS but not sure if problem will be solved, and I ain't got an idea what'll happen with it's CFW.
Lost data there is nothing u can do about that
 

KleinesSinchen

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Formatting the 3DS does not help – this could make the problem worse. (Recover saves)
Deleting things randomly does not help.

What happened to the 16GB card?
 

AngelArtifact

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KleinesSinchen

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I have a nand backup, can that work?

It still has the original 3ds data on it I think. Idk what to do with it.
The saves are stored on the SD. A NAND backup does not contain saves. Worse: Depending on when the backup was created it may have missing tickets (less games installed).
Unless the operating system is damaged itself, restoring the NAND is not helpful.

What happens when you put in the 16GB card?
  • Does it show the games on Home Menu?
  • Can you play them?
Made multiple copies of my existing files onto my desktop and moved original files from the smaller to larger SD.
That is the point. You need to find a copy containing everything from the 16GB card from before the corruption.
 
Last edited by KleinesSinchen,

AngelArtifact

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The saves are stored on the SD. A NAND backup does not contain saves. Worse: Depending on when the backup was created it may have missing tickets (less games installed).
Unless the operating system is damaged itself, restoring the NAND is not helpful.

What happens when you put in the 16GB card?
  • Does it show the games on Home Menu?
  • Can you play them?

It shows all of the games on the menu, but as I've said the majority of them don't show their title on the upper screen and won't launch, giving a "SD card has been removed" error. About 3 or 4 games out of 10 are working and launching correctly.
 

KleinesSinchen

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It shows all of the games on the menu, but as I've said the majority of them don't show their title on the upper screen and won't launch, giving a "SD card has been removed" error. About 3 or 4 games out of 10 are working and launching correctly.
With a fake SD it probably did not take long until the corruption showed up when installing additional software, so I would guess: You did not play very long or many games before seeing the mess. The 3DS is expecting to find some data on the SD that is just not there and gives that "SD removed" message.

  • Try if the games you played before switching to the fake SD do still work (on the 16GB SD).
  • Backup the saves of working games with JKSM and/or Checkpoint (but do one by one; the "Backup all" function will most likely fail)

Hopefully you can recover those saves you care the most for. Again, if you have a clean copy from before the corruption, it should be possible to recover the save data.

In general: Don't delete any data until you are sure you will not need it anymore!
  • If you succeed with backing up the saves, start with a freshly FAT32 formatted SD and check it before trusting it: Windows, Linux, OS X.
  • Only if the SD is okay, repeat the finalizing setup. In addition to the downloads mentioned there, you will need to put boot.3dsx and boot.firm into the root of the new SD.
  • Copy the backups JKSM/Checkpoint have created on the new SD, reinstall the games and restore the saves.
Note: Reinstalling a game within the old setup will overwrite its save! This is why you first reinstall the games on the new setup and then restore the saves.

Good luck!

From now on you should backup your saves from time to time with one or even both save manager(s). Storing the backups on a computer and/or other media is a good idea, because even good SDs can fail (suddenly) for no reason.
 
Last edited by KleinesSinchen, , Reason: More structured version.

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