I was in the middle of homebrewing my 3ds when out of nowhere, my 3ds stopped reading my micro sd card. It worked before, so why not now? I tried moving the files to a different microsd card, reinserting the microsd card multiple times, but alas nothing worked. I’m starting to think there’s something wrong with the sad card reader in my 3ds.
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Yeah, card reader would be my guess too. Before you replace it though, there is one thing you can try. Take out the SD and put a drop or two of isopropyl alcohol (90%+) on the pins, then press the card in and out of the reader several times to try to clean the pins in there.
If that doesn't work: Nintendo 3DS 2015 SD Card Reader Replacement
Don't worry, replacing the SD slot looks like one of the easiest repairs on this thing
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I think the pins just got dirty over time because when I put some isopropyl alcohol on it, it stared working again. Thanks!
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