Hardware i think ive messed up my 3ds

[keenhao]

so the other day i opened my 3ds up for the first time in some months. Forgetting bout some things i tried to update a game but it required a system update and i did that but now its saying "failed to apply 1 firm patch(es). Now ive thought back and remembered that i could restore the nand backup but when i went to go do that it was apparently corrupt and an error shows when i try to restore it, "MBR MBR is corrupt" and then "NAND dump is corrupt" does anyone know how to get out of this?

 

[KleinesSinchen]

so the other day i opened my 3ds up for the first time in some months. Forgetting bout some things i tried to update a game but it required a system update and i did that but now its saying "failed to apply 1 firm patch(es). Now ive thought back and remembered that i could restore the nand backup but when i went to go do that it was apparently corrupt and an error shows when i try to restore it, "MBR MBR is corrupt" and then "NAND dump is corrupt" does anyone know how to get out of this?

*sigh*
"Failed to apply 1 firm patches" #64542
Assuming GodMode9 did not start restoring the corrupted image (could be really bad):

• Replace boot.firm with the one from the latest release.
• Update boot.firm on CTRNAND as well.
  
• Checking your SD is highly recommended if the NAND backup got corrupted on it:
  • Backup your data, and check the empty (formatted) card:
    
  • Windows, Linux, OS X.

Create a new NAND-backup on a SD which is know to work (tested) and save the image file on your computer as well.