SD card reader not working after upgrading to Lion.

Exactly the same story. NOT WORKING INBUILT SD CARD READER AFTER UPGRATING TO LION. MACBOOK PRO APRIL 2010 RELEASE. Thinking to roll back to Snow Leopard as many things not working smoth like they used to be. The SD reader can be a last straw.

Not working with me on Lion on MBA 2011.

How do we report this do Apple?

Same here,

Zapping the Pram did it for me however,

works fine now

Same problem, card reader not working on snow leo too! I make system update 5 minutes ago, but poblem not gone...

did anyone found the solution /or answer on why after Lion upgrade several weird things are happening? f.e SD slot not working, same wifi on iPhone and MBook Pro is not working (sensitive) asking for change the adress manually, and today iCloud stoped to connect (any technical issue on perhaps? ) give us an answer pls...where is the Online support chat that I was use to...WHATS GOING ON!!!!

I am having the same problem. Running a Mac Desktop. Built-in SD reader worked fine under Snow Leopard. Upgraded to Lion 10.7.2, and SD reader no longer recognizes cards. Help!

Hi all,

I've the same problem.

Unable to use SD card reader since my upgrade to Lion few months ago.

Just a workaround (found I don't remember where) :

- launch USB Prober (in XCode utilities)

- click the "Probe suspended devices"

- the card reader works now but unreliably

Same problem. SDHC/SD/MicroSD+Adapter cards will not mount. Noticed after updating to 10.7.2 (11C73) or perhaps iTunes 10.5.2. MacBook Pro 15", Mid 2010.

The USB Prober shows that the Internal Memory Card Reader is suspended with the card in the reader. Checking "Probe suspended devices" and also tapping the card in as suggested in another thread does not mount the card. The card mounts fine using an external USB card reader and was mounting in the internal reader just a week or two ago prior to updating iTunes or Brother Printer Software with Software Update.

Im having the same problem, I've only had my MBP a month though :[. The SD reader worked fine until today, and I tried putting the computer to sleep, waking it, restarting, completely shutting down and turning back on and STILL it won't read my card :[. I've tried taking it out and putting it back in about 50 times, because I read if you insert it too slow it won't read, and I also tried a USB card reader but its old so I dont think the MBP is compatible. If anyone has any other suggestions I'll try anything. Should I ask to exchange my unit or is this an issue with Lion?

It's definitely a Lion's issue as I rolled back to Snow Leopard after struggling with the card reader and surprise....all my cards can be seen again and my MacBook early 2010 works perfectly. Just as it was working before I purchased Lion. What to do? Well I guess there is only one way to fix the problem. We should demand from Apple to debug Lion from this and many other errors in the code. Overall I am not very impressed with my first Lion encounter and will stay on Snow Leopard untill people would be able at least to use the MacBook hardware properly under any Lion built. I have also had so many other issues with Lion that it may take a few hours to list and it's not a purpose of my visit of this thread. Cheers to all and stay cool.

I had the same problem.. My MBP did not recognise my SDHC card after installing lion. It worked after installing an update. Goto Applications --> Utilities --> XQuartz and mac automatically asks for an update installation. Download and install the update. Your memory card slot should work fine now.

Are you sure about the application? I don't have that one under Utilities...

I've recently re-installed Lion as a fresh install, downloading the latest install from the Apple servers, and now my USB and SD Cards are not recognised, nothing happens when plugging them in, I've even installed a Windows partition and tested and it still doesn't work.

I'm trying to restore the EFI from 2.6 to the 1.9 restoration CD but the process listed on the support site doesn't work, my Macbook doesn't do the rapid blinking 3 times thing ....

Not happy.

Xquartz is now X11. If you couldn't find the application in your utilities folder then try downloading it.There is a download file available on this link -http://xquartz.macosforge.org/trac/wiki/X112.3.2.1 or you could install XQuartz and run an update. You can download XQuartz from here -http://www.macupdate.com/app/mac/26593/xquartz

I hope this helps.