Nintendo Switch Error Code 2005-0007 — microSD Card Unreadable

What Does This Error Mean?

Error 2005-0007 means your Nintendo Switch cannot read the microSD card that's inserted. The Switch found the card but couldn't access its data — it may be corrupted, incorrectly formatted, or physically damaged. You won't lose save data (which is stored in the Switch's internal memory), but games stored on the microSD card won't be accessible until the problem is fixed. Reinserting or reformatting the card resolves this in most cases.

Affected Models

Nintendo Switch
Nintendo Switch Lite
Nintendo Switch OLED

Common Causes

MicroSD card contacts are dirty or corroded from moisture exposure
The microSD card was removed while the Switch was on and data became corrupted
MicroSD card file system became corrupted, possibly from a power failure mid-write
The microSD card is failing or has reached the end of its reliable write cycles
MicroSD card is not formatted to FAT32 or exFAT as required by the Switch

How to Fix It

Power off the Switch completely (hold Power > Power Options > Turn Off). Remove the microSD card from the slot on the back of the Switch. Inspect the card's gold contacts for any dirt, fingerprints, or corrosion. Clean gently with a dry, soft cloth.

The microSD slot is on the back of the Switch under a protective flap. Always power the Switch off completely before removing or inserting the microSD card.
Reinsert the microSD card firmly until it clicks into place. Power on the Switch. If the card is recognized, the error is resolved — the card was simply not fully seated.

The microSD slot requires a firm push until you feel and hear a small click. A partially inserted card causes read errors.
If the error returns, test the microSD card in a computer using a microSD card adapter. On Windows, right-click the card in File Explorer and run 'Check disk for errors.' On Mac, use Disk Utility. This confirms whether the card has file system errors.

If the computer also can't read the card, the card is likely damaged. If the computer reads it fine, the corruption was specific to the Switch's file system on the card.
Format the microSD card using the Switch's built-in formatter. Go to System Settings > System > Formatting Options > Format microSD Card. This wipes all data on the card but fixes file system corruption. Games will need to be redownloaded from the eShop.

Your game save data is stored in the Switch's internal memory — not the microSD card. Formatting the card does NOT delete save data.
If formatting the card doesn't resolve 2005-0007, or if the card also shows errors on a computer, replace the microSD card. Nintendo recommends UHS-I Speed Class 3 (U3) or A2 rated cards. Brands like SanDisk, Samsung, and Lexar are reliable choices.

MicroSD cards have a finite number of write cycles. Cards used in gaming consoles for years eventually wear out — this is normal.

When to Call a Professional

Error 2005-0007 is almost always fixable at home. If reformatting the card doesn't help and a brand-new replacement card also shows errors, the Switch's microSD card reader hardware may be damaged. A microSD slot repair requires Nintendo service — visit nintendo.com/repair.

Frequently Asked Questions

Will formatting the microSD card delete my game saves?

No — Nintendo Switch game saves are stored in the console's internal memory, not on the microSD card. Formatting the microSD card will delete game software and downloaded content stored on the card, but your saves are safe. You'll need to redownload your games from the eShop after formatting, which is free for any games you've purchased.

Can I recover the data from my corrupted microSD card?

Sometimes. If the card is readable on a computer, copy any important files before formatting. If the card is unreadable, data recovery software like Recuva or PhotoRec may be able to recover some files. For the Switch specifically, however, any recovered data needs to be in the correct Nintendo format to work — partial recovery usually isn't usable for games.

What size microSD card should I buy for a Nintendo Switch?

For most users, 256 GB is a comfortable size — it holds 15-30 full games depending on size. If you download a lot of large games, 512 GB or 1 TB cards are available. 128 GB works for light users. Buy from a major brand — SanDisk, Samsung, or Lexar — to ensure compatibility and reliability.