SD card reader not working on high sierra

Ever since updating to 10.13 my SD Card reader is no longer mounting cards? any ideas how to fix this


Thanks

Mac mini, macOS High Sierra (10.13)

Posted on Sep 27, 2017 9:03 PM

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Posted on Feb 1, 2018 5:27 AM

I've been testing the betas and going back and forth reporting issues with the SD card. In my case at least I'm pretty sure it isn't an OS level issue.


I worked this out by completing a series of troubleshooting steps:


  • Cleaning the SD card slot
  • Looking for an actuator switch in the slot that tells the OS a card is present (which can seize up). Pressing is several times with a cocktail stick can release it. Note: this switch only appears in earlier SD card slots on Macs and not in my 2.2ghz Macbook Pro.
  • Blowing compressed air into the slot.
  • PRAM/NVRAM reset.
  • SMC reset.
  • I tried a range of sleep settings, including disabling hibernate.


After the last step I considered that I must have a hardware failure, but instead I tried the following:


  • Booting into safe mode and then testing the SD card slot.
  • I found that with certain kernel extensions disabled, the SD card worked normally.
  • To test further, I downloaded the latest OS installer and then installed High Sierra on an external drive.
  • I found I didn't have the issue when using this drive!


I discovered that there is a flaw in the current version of the Jetdrivetoolbox software (used for ejecting SD cards made by Transcend before system sleep) that seemed to push the card reader off the hardware profiler after the machine wakes up. Note: the SD card should appear in the card reader and USB bus sections. After I uninstalled Jetdrivetoolbox, my SD card is working perfectly and behaves as expected. The only advantage of the software was that it allowed the system to hibernate (usually a Mac can't do this with an SD card present in the slot).


You may discover that it's a hardware issue or merely dust - or you have incompatible extensions or startup items that are interfering. Another option (I don't know for sure) is that using an installer to do a clean install on an external drive rather than using the recovery partition may force firmware updates to be applied. I also had an iPad charging issue (cycling between mount, charge and unmount) which was resolved installing the OS on an external drive that could be explained in this way...

129 replies

Nov 16, 2017 6:19 AM in response to SpiritPainter

Yes I know it seems that way but it's good to check. I've seen a great many hardware problems that coincidentally showed just after an update. It could also be a firmware problem, which are now bundled with the OS updates. Firmware problems wouldn't be fixed by reinstalling the software. So it's best to check all possibilities and be patient. If it's dire, get an external reader or connect your camera directly via USB and use Image Capture for now, until you figure out what's wrong.

Nov 16, 2017 8:11 AM in response to robogobo

One of the first things I tried was connecting the camera via usb -- no dice. Same problem, it doesn't see it. For now, my workaround is opening it on my windows computer, saving the photos on a usb stick, then plugging that into the Mac Mini. Klugey, but it works until Apple gets this thing fixed. As you can see from the comments, a lot of us are experiencing this issue, especially with mid 2010 Minis. Everything worked fine forever, then High Sierra and -- no card reader function.

Nov 16, 2017 9:33 AM in response to SpiritPainter

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.

Nov 16, 2017 10:48 AM in response to SpiritPainter

Apple Menu > About This Mac then click on System Report. The first pane (Hardware) should show "Boot ROM version" toward the bottom. While you're there, check which "Model Identifier" is listed (toward the top of that pane).


btw- If you connect the camera via USB, many applications won't recognize it unless it's mounted as mass storage. Most cameras don't do this anymore, only P2P, so you have to use Image Capture to see the camera.

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SD card reader not working on high sierra

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