SD card reader not working on high sierra

try a different card? what about all the data on the existing card?

Same here. I upgraded to High Sierra because after the latest security update, my sound stopped working. Now I have sound, but I can't read my camera's SD card. I'm an artist and photographer -- this is a major problem.

Yeah it sounds like it's a problem specific to Minis of that period. I have a 2011 Mini that I haven't updated yet. I don't need the card reader on it so I think I'll go ahead and do the update so I can if I can duplicate this problem. I would still bet it's a firmware problem, not system software. I've heard of bundled firmware updates failing without warning during OS updates, so I'm guessing that's what happened. Success may depend on what system you had running before the update.

For posterity, you could check your firmware version in System Info (Boot ROM version) and post it here so others can compare what they're running and whether there's been an update.

Same issues here. I’ve been dealing with it for about a few months after installing Sierra. I thought maybe something was wrong with the card so I purchased a brand new one to find out that it’s still not reading.

In order to get the photos off of my camera, I have to use Camera Connect by Canon to get them to my phone and put them on my iCloud to get to my MacBook. It’s a very annoying, unnecessary process. Not sure why Apple hasn’t tried fixing this issue.

Having the same issue. I have a MacBook Pro 2017 with only the 4 USB 3.0 ports and have to use a SanDisk Extreme Pro reader with the SanDisk card. Purchased the reader from the Apple store the same day as I purchased the computer. Everything worked fine. Until late September. Has not worked since. Truly thought that Apple would have come out with a fix, so did not worry about it until today when I wanted to send an Xmas photo to family - NOT HAPPENING NOW!!

Was pleased to fine that Apple Care was open and spent just over and hour total between a couple of calls (of course they wanted me to install High Sierra as that was sure to fix the problem NOT). Got pushed up to a level two who said it must be corrupted cards, as under system info the card reader was showing, but it still might be the card reader?! So tried it on my sons (same model computer) and still not working.

My neighbor has an older MBP running 10.13.2 but had the direct SD card port. Tried it and well all the cards and my old card reader worked, so not the card readers and not the cards!

So what is it?? Any suggestions?? SO frustrated !!!

Alas, the PRAM reset didn't rectify the problem. After resetting the PRAM and booting up again, the mid-2010 Mac mini's system report did register that a built-in SD reader is present, which seemed promising, but the reader still wouldn't read cards. (I've tried several brands of SD cards, all of which worked prior to updating to High Sierra and still work when inserted in my printer's memory card reader or if I use a USB card reader. Only the Mac mini's internal card reader is compromised. After resetting the PRAM and getting the computer to at least register that an internal memory card reader is actually present. I tried several troubleshooting suggestions in previous posts (e.g. Command+R, launching Image Capture and then trying the card, and checking to see if Disk Utility registered the card it didn't). If it was a Finder issue, as some have suggested, I figured it wouldn't hurt to trash the Finder.plist file and reboot. After doing this, the computer's system report reverted back to its, "This computer doesn't contain any Apple memory card readers" status. So, basically the PRAM reset got the computer to temporarily register that a card reader is present, but I'm still at a loss as to how to get it to actually detect/read cards again. Hopefully 10.13.4 will address this, especially considering how many people with certain Mac models are experiencing similar woes.

I had a similar problem but with an important variation. I COULD import footage from my SD card - no problem there - but when I created any movies in iMovie after the beginning of November 2017 there was a noticeable defect/glitch/picture break up at the top of the frame which lasted a second or so. This occurred several times in a 3 or 4 minute video. I considered problems with my camera or the SD card or the slot on my Mac but then realized that the problem occurred RIGHT after upgrading to macOS High Sierra 10.13.1 in November 2017. IMHO then it had to be related to the upgrade and after discussion with techs and Apple Care, I learned it was a combination of the upgrade AND the fact that my regular camera model was no longer supported by Apple and iMovie. Big news to me. Tim at Apple created a "walk around" for me that meant I would not need to go out and buy a new camera. Basically it involved on finding the clips in Canon then AVCHD and then exporting via Quick time and them importing back again as a .mov file. A little convoluted but it has been working. So if anyone is having that "glitch" problem - no need to buy a new camera - just take this new approach. Hope it works for you as it did me

I agree. Mac mini 2010 apparently is not fully compatible with macOS High Sierra. No resets of anything nor safe boot don’t help. The issue remaining is why Apple claims the Mac Mini 2010 to be High Sierra compatible. For us Mac Mini 2010 users the macOS Sierra remains the last fully compatible operating system so far.

I'm afraid I don't have an answer for you then. All I know is that SD cards including SDXC cards continue to work on my Macs. Try a different one.

Yes it will erase all on the card. Try to off load using another computer and copy back later

Yes, I did. Would it recognize anything more when you re-boot with Command+R than it will just in "Disk Utility" on a normal boot?

I needed to Erase my SD card so that the camera would read it after opening it in Finder.

Hi Pablo.

Have you solved your issue?

I had to downgraded my Mac Mini mid 2010 down to Mac OS Sierra in order to have the Card reader work again.

Regards, Robert

Better to start a new question. That's not the topic of this discussion. Sounds like you may have a defective card.

I have the same problem and I reset SMC and still no SD's mounted. I also checked my System Report and it says that there is no internal SD card reader. I have a early 2013 MacBook Pro Retina 15". Whats your suggestion?