My SD card slot on the latest MacBook (Mid 2012) won't mount my SD card. The SD card doesn't appear in Finder, Disk Utility, Image Capture or anywhere. I know it's not a software problem, because nothing changed before and after. How do I fix it?
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I can't post a new answer because of the protected status of the question. For me, blowing into the slot didn't work. I spoke to Apple support who suggested resetting NVRAM and SMC, and this does seem to have helped. In particular, it seems to be the SMC reset that helped. – PeterT Dec 11 '16 at 16:15
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@PeterT Please make an edit to the main answer with your details - I will approve that addition if someone else doesn't do it before I see the edit. – bmike Dec 13 '16 at 18:09
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Actually, I think I was just lucky the first time I tried after the SMC reset. The problem was always intermittent, and I guess likely more related to dust etc after all. – PeterT Dec 13 '16 at 19:17
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@PeterT You have to blow really hard. Trust me. It works. – Andremoniy Oct 15 '17 at 14:19
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1@Andremoniy had a bit of a double take when that notification appeared on my phone; looked like spam out of context :)... Anyway, it works now, I don't know what fixed it. – PeterT Oct 15 '17 at 14:24
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I blew hard in the SD card hub. Now it is working fine.
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2Are you freakin' kidding me? How the heck did this work... I can confirm that this fixed the issue... – megamaiku Aug 17 '17 at 07:42
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Hahaha! This worked. Guess we have to keep an eye on dust build up with the card readers. Worked a treat on my iMac. Thanks. – Gareth Daine Jan 30 '19 at 12:56
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This thread says that there's a switch in the SD card slot that detects when a card is inserted, and it can get clogged by dust or jammed or something. If you play around with a toothpick (or anything that fits in that hole), it'll fix your problem. Toggling that switch helps.
Scott
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4Yeah. I only commented because it was a hard bug to find, and much prefer Stack Exchange over some random forum. – Scott May 24 '13 at 20:22
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for me sticking the SD card in and pulling it a bit out again ( just a few mm ) seems to get it mounted. There's even a video that explains how to put it in and pull it out a bit here
But I find that putting it in under an angle works better: Sticking the card in under a angle with the cut off corner against the top of the SD slot and then pushing the card in seems to get it mounted every time.
FLY
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2+1 for sticking it in under and angle: works reliable up to this point. – 0x6d64 Jan 06 '15 at 17:13
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1-1 for how ridiculous it is that you pay a premium for this hardware and then have to stuff like that – charlesreid1 Jul 27 '15 at 06:47
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I wiggled the card while it’s in the slot and it appeared on the desktop. Great! – pointum Nov 08 '19 at 18:55
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My Mac book stop seeing the cards, I used a can of air to clean out the reader and it works fine now.
Scott
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Blowing compressed air into the SD slot on 2 of my MacBook Pros solved the problem. Thanks for that tip. I had tried everything else. – Jul 14 '14 at 00:59
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Maybe some dust is stuck in the card slot. To remove, gently blow into the slot and try to insert the card again.
nohillside
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finie
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