Unable to use SD-Card-Drive after updating to OSX Mavericks

Same problem with Mavericks reading SD card, but this worked for me.

IT DOES SEEM TO BE A CONTACT PROBLEM. There is such a small degree of effective contact. Put it in all the way & it won't read, 1mm short of all the way won't work. Half a mm & it works fine.

thanks . I'm in talks with Apple customer care here in India. They have been quite helpful so far by atleast acknowledging that this is quite a unique problem and they will get back to me in 2-3 days. So far so good.

Will keep you updated regarding the same

Hey same issue with my macbook pro 2012...not able to access card reader after updating to OS MAVERICK

Hi Hemang77,

Just try putting the SD card in short of 1mm, give your Mac time to consider this eventful task & the disc should show up eventually.

Think Differ....(spinning wheel of death)...... ent!

FWIW, I have a 2012 MBP and a 2012 Mini, and I haven't had any problems using SD cards in any version of Mavericks.

In fact, I've made an SD card as my Mavericks installer disk.

If it was a bug in the OS, then all 2012 MBPs would be affected. So the cause might be elsewhere. Which hopefully means a fix can be made without waiting for an OS update.

I'm having this problem on my MBP w/ Retina 15", I have Applecare, so I am going to call in and see what they say.

Works.

iMac mid 2009

Mavericks 10.9.4

Unable to read 4 Gb card using external card reader. Reader has worked in previous OS's.

I've tried some of the options offered in this and other similar threads but no luck.

Problem only apparent after installing Mavericks 3 months ago.

The iMac was able to read the card in my camera with my camera connected (Canon PowerShot S5IS, May 2008).

Unfortunately the Canon has developed a fault and won't operate hence the need to access the content on the card using a card reader.

Hoping for some help soon.

For those who's tried the solutions mentioned before.

I have experienced this problem before (as well as many of the customers of the APR where I worked before).

Here's a silly, but simple solution for those who's tried resetting SMC (or worth trying before that).

The SD card will have a lock slider (similar to good old floppies). If it's on unlock/lock, the card won't read.

If you put the slider in between, about a third of the way from unlocked to locked (NB! Not in the middle), the card reader will recognize the card.

It a silly fix, but it has worked for me several times.

I was having the same issue with my Macbook Air, early 2014. After trying all the suggestions in this thread to no avail, I started trying other SD cards.

I finally realized the cards that didn't work appear to be slightly thinner than the cards that do work. My electronic caliper has a dead battery. As soon as I can replace it, I'll post actual size differences.

Unfortunately, most of my cards that don't work are higher capacity class 10 cards. All my old class 4 and 6 work just fine... smh.

Both cards are by Sony and I've used both cards in an HP Windows 8.1 PC many times with no problems reading them.

This worked for me.

Caution advised.

https://www.youtube.com/watch?v=SGh3jra4ApE

OMG!!!! THANK YOU SO MUCH @munte89!!!!!

This worked!!!!!!!

I didn't want to do SMC.......so I tried this lock slider trick as a last resort before doing SMC.....and IT IS FULLY WORKING NOW!!!!!!

Thank you!!!!!

Macbook Pro Retina mid 2012 15 inch

OSX YOSEMITE 10.10.5

Hi. I'm having the same problem here since I updated to Mavericks, I've moved on to Yosemite now. Still, my card reader doesn't work at all. Anybody knows if Apple takes this as a deffective issue in general? Or any other solution available? Thanks in advance.

After updating to El Capitan my San Disk and Kingston micro card were not readable. I disconnected all other usb devices, plugged in my microdisk and restarted my mac. The micro disk was then readable.

Yes munte89's fix worked for me too! I have a mid-2011 27" iMac, and putting the tab in the middle of the micro SD card adapter mounted my card!

Thanks much! silly apple.