Hacking Question Atmosphere emummc refuses to access SD, displaying Error 2016-0247

[DeepFriedIcecream]

Hi, This is a question I've posted in NOOB PARADISE thread that was left unanswered. I hope someone could help me with this.

What I have:

• FW 9.0.1
• Atmosphere 0.9.4 running on emummc
• Sandisk 200GB formatted to fat32, of 30GB allocated to hidden emummc partition
• All worked fine before this

What happened:
I was copying a large archive of files - bunch of dated console roms - onto SD with my PC. Apparently the USB card reader was faulty and the work failed halfway when the SD was suddenly dismounted. I mounted the SD with a different reader and deleted what was left from failed copy attempt.

What's the problem:

• I can boot to emummc and see all the games I've previously installed. However the switch immediately displays Error 2016-0247 'Unable to access microSD card.'
• In the settings the SD doesn't show up and I only see the internal storage
• The switch thinks that the install data of all games are missing and asks me to redownload them
• I can access to album HB menu, but none of the homebrews are there
• When I boot to sysnand the switch does recognize the SD and accurately displays free space
• Hekate also recognizes the SD and shows emummc enabled

What I've tried and failed to fix it:

• Ran a number of disk checking tools to scan and fix errors of the SD - nothing came up
• Backed up all files in SD and reformatted the primary partition to fat32 multiple times
• Unchecked and checked archive bits of every files multiple times
• Disabled/enabled emummc and tried migration in Hekate
• Changed the version of Atmosphere files and RCM payload
• Removed Nintendo folder from the SD
• Dumped emummc with NxNandManager and opened it with HacDiskMount to extract saves - HacDiskMount seems to be unable to recognize either full dump or decrypted USER dump

What I considered:

• Trying a different SD - this is the SD with largest capacity I have, and while I will gladly blow some additional bucks to fix this I'd refrain from doing so unless it turns out to be the definite solution. I don't expect it after all, as the card is recognized properly on every other occasion - PC, sysnand, Hekate - and emummc is the only one that's having issue with it.

What I want to:

1. It'll be the best if I repair this and manage to make emummc access the SD once again.
2. If it is not possible, I'd like to salvage saves stored in emummc, at least. Formatting the entire SD card and reinstalling whole 150GB of data would take some time, but I can put up with it. If I could run homebrews it would've been an easy work. However since I can't do so Edizon or Checkpoint are out of question.

I tried to include as much information as I could. Please let me know if some additional data is required. Thanks in advance.

 

[Draxzelex]

Pretty sure the emuMMC is corrupted in some way so you're going to need to remake it.

 

[Latyana]

Omg I've got the same issue. Not to hijack the thread but if that's what I gotta do how would I do it??

 

[Draxzelex]

Omg I've got the same issue. Not to hijack the thread but if that's what I gotta do how would I do it??

https://gbatemp.net/threads/how-to-...nofficially-without-burning-any-fuses.507461/

 

[BaamAlex]

https://gbatemp.net/threads/how-to-...nofficially-without-burning-any-fuses.507461/

Best way to start with, is here. There you can reply to all the existing threads

 

[Draxzelex]

Best way to start with, is here. There you can reply to all the existing threads

That has nothing to do with what I said or OP asked. Unless you're trolling, you can't be serious. And you have the gall to say I'm like talking to a wall? That's the pot calling the kettle black.

 

[0nak]

Hi

Did you Solved the issue?

 

[BaamAlex]

Did you Solved the issue?

You can wait forever for an answer. OP is offline since may, 23rd

 

[Draxzelex]

Hi

Did you Solved the issue?

https://gbatemp.net/threads/how-to-...nofficially-without-burning-any-fuses.507461/

 

[Soundtoxin]

I ran into this issue recently after upgrading all my homebrew, although unlike OP I do see all the homebrew apps in the menu launched from the album. I get the same error popup + games showing the data is missing. sysMMC still works. I tried booting an old backup emuMMC and I don't get the SD card error popping up, but I have the same issue of the games missing their data. I was able to upgrade to latest firmware via Daybreak on emuMMC despite the issues, but that did not seem to make any difference with the error popup or missing game data. I see that OP hasn't been active on the site in a long time, but if anyone else has some ideas, let me know.

I saw some other threads where people mentioned remaking/reinstalling emuMMC. What would that process entail? Would I lose the data and start over?

I also found a similar issue on the Atmosphere GitHub issues, but the submitter was pressured into getting help in Discord, so whatever may have fixed their problem is not publicly documented. I do not use Discord on principle, so I won't be going there to get help.

 

[AlexTreme]

Hello, what is the solution to this problem?

 

[linuxares]

Answer in last post, recreate your emunand - https://github.com/Atmosphere-NX/Atmosphere/issues/1819

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