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

As with Shelagh - I have installed all the updates available on Software Update and launched X11 and was not prompted to update it.

I am not sure that dust is effecting my machine as I can not see how Lion is more effected by dust that Snow Leopard. Same with the logic board really - I can not see how Lion is more effected than Snow Leopard. I may be wrong.

Does anyone know how to report this to Apple? I have seen numerous people ask this but the question always seems to be ignored.

Any help would be greatly appreciated.

@Shelagh - There is an option to check for updates in XQuartz but I couldn't find that in X11. Did you try re-installing X11? 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.

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?

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

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'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!!

@Supritha: This totally worked! Can you give us any insight into why these two things are related??

By the way my card is a value brand 32gig class 10 SDHC bought in Japan.

Message was edited by: artsyca : added the type of Card I'm using.

okay so ive tried everything that has been posted here and none of it has worked. I'd like to point out that my simcard (SDHC 4gb) worked just fine a few weeks ago, and I didnt do any updating or make any changes to my computer between the time it worked and stopped working. Also, the memory card reads fine in othe computers, and my computer reads other memory cards fine, so its neither the card or the computer but rather the two together (as most of you have already pointed out). I downloaded xQuartz but when I clicked on it it didnt ask for an update, and when it opened it still opens under X11. I went to X11 > check for updates and it said I have the newest available version (2.7.4) but it seems like that worked for everyone else. how do I update it? I've tried everything else people have suggested. I dont know what to do!

Also if this is relevant, im running on OS X 10.7.5.

I'm having the same problem w/ CF cards on my iMac running Lion and my daughter's macbook pro running mountain lion. All of a sudden neither computer will recognize and mount my camera. 2 4gb Sandisc memory cards, in the camera or in a card reader on 2 computers and suddenly they don't work. They both work fine on my PC at work. This is not dust. So is the fix the same as for SD cards? Has anybody ran across anything different for CF cards researching this?

My MacBook was mounting my Sandisk 4GB fine until today. I installed Mac’s update 10.8.3, now it won’t mount the disk. I’ve done the obvious, confirming the finder preference to show the disk, and downloading and installing XQuartz-2.7.4. I’m not into applying WD-40 to the USB connector. The card reader was new last week. When I install the card reader the LED flashes once, briefly, an indication the MacBook knows it’s there I guess, but it remains dark and the disk never mounts. What should I do?

I tried the update, and it didn't help. My problem is that the Sandisk card I bought yesterday isn't recognized in Iphoto. I bought it to take pix off the computer to have prints made, but when I put the card into the slot, it doesn't appear in the Iphoto sidebar - it appears on my desktop. Any ideas? Thanks

Hi, I've tried everything here. I have a brand new MacBook Pro Retina of 256 flash and I've tried doing the following and still it does not work... any ideas on how to make it work? (OS X 10.8.3)

1. I have the XQuartz 2.7.4 (If it works just as it should be, when I insert the SD Card should XQuartz open something?? What is the response that I should expect from it?)

2. I have checked (and unchecked and checked it again) on the Finder>Preferences>External Disks

3. Gave it a puff

4. Put the SD card in and then pulled it out waited... and then put it back in 3/4

5. Restart Mac several times

6. Attached a SD Card reader via USB

and still nothing. It is not reading it.

It reads my Samsungs External Memory (USB) just fine but it cannot read the SD Card!!

The SD Card can be read in my Lumix cam and it reads it perfectly in my husbands iMac, so the SD card is fine.

Any light on what the issued might be?

I am on Mountain Lion, 2008 MacBook Pro, using an 8GB ScanDisk. Earlier today, I uploaded photos no problem. A couple hours later, nothing at all pops up on my computer.

I had X11, updated it, didn't work. I've reset, shut down, scoured the forums to no avail. I've tried inserting it part way, nothing.

It was fine earlier today, and now it won't read it? What am I doing wrong?

Thank you for the tip but I dont think the toothpick trick is the answer. I have two of these genric usb SDHC readers and they both only read cards if they are formated EXFAT. This would suggest the card readers can read the card but OSX or the reader or both can't read FAT32.

The card readers both read FAT32 on an iMac running 10.6 or Windoz laptop.

And my MBP reads FAT32 on a kingston 15-1 card reader.

I have the opposite problem. My 2013 MacBook Pro will read my 16GB microSDHC card in the SD slot with adapter, but not will not notice it via USB adapter... Strange thing is that my 2008 MacBook has no problem reading/writing the card via USB.