SOLVED: microSD Card Reader will not read Express cards - Nintendo Switch 2

microSD Card Reader will not read Express cards

Hi there, been enjoying my Switch 2 for some time now and finally decided to expand the storage for it (dang game-key cards....). Anyways, I bought the Onn 512GB express card, new and unopened. However, as soon as I open it and put it in, the console doesn't recognize it. Like, nothing pops up. Still says there's no card inserted. I tried it on my sisters Switch 2 and it popped up just fine. Correct me if I'm wrong, but I don't think it's broken, because during setup, I had to transfer photos/videos from my Switch 1, requiring me to insert my Switch 1 microSD card to do that, and it worked. So now I'm just really confused. Any help would be GREATLY appreciated!!!!

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Posted: Feb 10, 2026

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Hi!

Well, as long as the card works on another Switch 2, I'm afraid it isn't looking well.

What I advise to do first: Test another Express card (and from a good brand, like the Samsung P9).

If this also fails, I'm afraid it has something to do with your Switch 2. Do you still have warranty on it? Otherwise return it and let it be repaired.

If there is no warranty, you can do it by yourself, it's not that difficult. Guide: Nintendo Switch 2 MicroSD Card Reader Replacement

Please let us know how it goes!

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2 Comments:

Ok then, I checked and there's still a warranty, so I guess I'll just send it in. Gonna be very painful without it XD

Feb 10, 2026 by arata

Okay! Then I would return it and let it be fixed. It's for the best and it's your right to have a working Switch 2. Please let us know how it goes :)! Thanks!

Feb 11, 2026 by koppie007

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Nintendo Switch 2

microSD Card Reader will not read Express cards

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