MacBook Pro won't read Sandisk SDHC cards since Lion 10.7.1 update

It is called X11 in your Utilities folder.

Thanks. I thought I posted a retraction. I figured that out. I downloaded XQuartz and updated after launch and sure enough, the card mouinted. We'll see if it works next time I try to mount the card. I am disappointed that Apple hasn't addressed this.

xquartz is an open source project.

Tattootimmy, I tried your method as what you were saying is exactly what my 8GB card has been doing, but when I hit erase it starts working and gives me an error message "could not write to last block of the device."

Any suggestions?

Hey Supritha,

I'm on 10.7.3. Tried to find "Xquartz", but couldn't. Could you help me out?

Figured it out. Downloading the new X11. Fingers crossed - hope it helps. 😝

Well, Did it work?

my card reader on my HP printer will not work on my mac . But I use card reader via a usb card and it works ok for my 8 gb sd-card from my camera .using snow leapord have not updated because of many horror stories about 10.7 lion

mechanical failure for me. i sprayed contact cleaner in the slot and on the SDHC card and it worked. the slot's been flaky since i got it, positionally sensitive but this time nothing worked until a touch of spray.

I can't find the new X11 anywhere. Does anyone have a link? Like others - my SD card reader in my late 2011 MacBookPro 13" with 10.7.3 does not read cards. Even if I push them in 3/4 of the way. This has to be one of Apple's biggest blunders in recent history. To replace the VERY useful PC34Express card slot with a cheapie intermittent non functioning SD card reader that you have to go through weird steps to make work on SOME laptops?? C'mon Apple. This isn't like you!

I have had the same problem on my iMac with the SD card not showing up in Finder. I tried a new card reader and that wasn't the problem. It turned out to be a super easy fix! Go to Finder > Preferences > Sidebar > then check the External Disks box. Worked for me!

This fixed it for me. Although it wouldn't let me actually format the card, but after I tried - the card worked.

Updating XQuartz worked for me. On 2011 MBP in 10.6.8 with SanDisk SDHC 4 GB.

Thanks, it worked perfectly... I just gave the card slot a huge puff, and I got it to work! Thanks again for the advice.

I've downloaded XQuartz and updated the program...but I still can't get my SanDisk 4GB Ultra to mount. I have a late 2011 MBP. I've also tried blowing into the card slot and putting the card in 3/4 of the way. Is there any other solution that people have found? For some reason, I am also unable to get my Canon to connect using the USB cable even though it worked until last week. I can get my card to connect through a card reader but I left that at home and am on vacation and would like to be able to save my photos. Does anyone have any suggestions?

Thanks!!