Device removal error.....   The card reader ejects itself

Hello, I'm new to macs and purchased a Mac Mini a week ago. Things were going well until I needed to move pictures from a digital camera to my mac.
I purchased a GE 19 in 1 card reader which is built for mac os x. I hook it up to a usb port and try and look at some pictures. After a few seconds, the card reader ejects itself and I get the "device removal" error. The error will then continue to appear over and over again. When I try to eject the reader using by clicking eject, the reader ejects and only reappears a minute later and ejects itself again. I've tried using another usb port and I know for sure that its not the cable.
If I can't get any prompt answer here, I'm going to call the Genius bar tomorrow morning and ask about the problem. <Edited by Moderator>

More often than not, when a card reader or other similar device disconnects from the USB bus because it is drawing too much power. In a card reader, that would not unusually be triggered not by the card reader itself, but by the insertion of a card causing it to read the content and mount the volume on the Mac's desktop. Part of the problem is that while everything is invariably quoted as USB compatible, many such devices don't entirely comply with the USB standard, resulting in conflicts or load demands which may be borderline, or worse.
You may be able to get more reliable performance from your reader by disconnecting other USB devices when you are trying to use it, or by using it with a powered USB hub. Occasionally, borderline problems can be temporarily resolved by connecting the device to a different port, if necessary switching devices around. Alternatively, it may be that in an attempt to produce a device with the greatest flexibility in terms of media compatibility, they have compromised on components.
I would generally recommend a card reader designed for the specific card type you need. These are typically far more reliable. If you need to use different types of card media, then be prepared to spent on a well established brand with a reputation in this sector of the market, such as SanDisk.

Similar Messages

  • Memory card keeps ejecting itself

    Dear Apple experts,
    I have had an iMac with OS x 10.6.7 for a year now and for the last 2 weeks, whenever I connect a memory stick pro duo via a memory card reader, the card keeps ejecting itself every few seconds and an error message comes up "disk drive not ejected properly.
    I have tried changing the cable, the memory card and the reader but the problem persists.
    Please could you advise?
    Many thanks.

    try reformatting the card using your camera
    and restart your computer
    LN
    PS - Note that we are not Apple experts - we are Mac users just like yourself who use iPhoto
    Message was edited by: LarryHN

  • How to remove SD Card from the Card Reader slot - Satellite A100?

    Hi,
    Is there anyone to help me? I inserted a 64 MB SD card in the card reader slot of my Toshiba A100 model. It's the first time i have inserted the card. The card is inside the slot. I can not take it out! I don't have any idea how to remove the card from the card reader slot. I can see the contents of my SD card, can open the files too. But how to remove it out from the slot. Please help me giving your idea to remove the card out from the slot.
    Arjun

    Hi
    In my knowledge the SD card slot doesnt has a any additional helps like the PCMCIA slot to remove the card.
    You have to remove it simply. Try to grab the card and move it out. You can try to use the pair of tweezers. Maybe it helps

  • Device removal error?

    I picked up a new 500 gig Hitachi hard drive to put into a vantex hd enclosure. Now every time I try and use it, i get a device removal error and the hard drive icon on the desktop disappears. I can't use Time machine or verify my hard drive in disk utilities because it always seems to eject itself. I tried a couple different USB cables and tried rebooting my computer. Both products are new, I'm wondering if it is a hardware problem and if it is, which one, the enclosure or the hard drive?
    Any suggestions?

    Thanks for the suggestion but..
    Tried that this morning and it still doesn't work:( I turn it on, start up Time Machine and it starts backing up the files and then some times it will start backing up 20-30 gigs and then give me the device removal error, or sometimes it only backs up 10-20 mb before giving me that error, but even after it ejects itself the hard drive is still on, but i have to turn it off and then back on again for the disk to remount. I'm leaning towards a hardware problem, just not sure if its hard drive or enclosure. I bought both online and having to send them back is always a pain because they usually just send them back saying they work and tack on another fee. Im hoping to resolve this some other way, but running out of ideas.
    Any other thoughts?

  • Xserve Raid - Devicer Removal Error ?!

    Hi !
    Can anybody help me ?
    Whenever I copy some files from my Macintosh HD on my G5
    to Xserve Raid 30 seconds after start copy process stops and I
    get an Device Removal error.
    I have traid everything and I can't get it right.
    BTW
    is my setup ok ?
    Apple Fibre Channel Card
    Port speed: 2 Gb/s
    Port topology: Arbitrated loop
    Xserve Raid
    Port speed: 2 Gb/s
    Port topology: Arbitrated loop
    Read prefetch: 128 stripes - 8 MB/disk
    Controller cache: on
    Drive cache: on
    Host flushing: off
    Steady Streaming: off
    Raid slices:
    2x250 GB left controller
    2x250 gb right controller
    Disc Utility software raid:
    Striped raid 0
    left + right
    Raid block size (default: 32 K): 256K
    Please help!
    Thx!
    Crowebster

    Hey Kel,
    I've only seen a error -36 on a raid volume twice.. both times were days before a controller failed. I'd try swapping controllers and see if the problem follows the controller...

  • When waking from sleep getting "Device Removal" error on Lacie external

    When waking from sleep getting "Device Removal" error on Lacie external drive. This drive is my Time Machine back-up and I don't want to lose it. I don't know if anyone else has seen this error. Let me know.

    Getting this same error since switching from Firewire to USB. I have a Maxtor drive in an Adaptec enclosure. It has it's own power supply and both USB and Firewire 400 connections. Just upgraded to a new Mini from old Powerbook, so no more Firewire 400!
    The big difference between USB and FW:
    With the old PB G4 and Firewire, when I put it to sleep, I could hear the external drive actually spin down. On wake up, It would spin up and mount properly. Now with the Mini and USB, when I sleep the Mini, the external drive NEVER SPINS DOWN. I did some research and found that many drives have built-in power management that basically powers them down after some idle time. So the Mini is going to sleep with mounted drives, at some point later the drive sleeps itself, then when the Mini wakes, the drive's not there.
    Obviously, Firewire is doing a better job of talking to my external than USB. I'm ordering a FW400-to-800 cable and will test this. I also think it has something to do with the chipset/firmware in the external enclosure, as many people are reporting their external USBs behave properly during sleep.

  • Firewire drive Device Removal error

    I have three (3) firewire enclosures and only one of them works with my intel Mac. All three work great with my old G4 laptop and iMac but now I connect them to this new intel Mac and I get the beach ball that spins and can not read the drive. Well actually I can read the drive for maybe a minute before it locks up and in some cases it dismounts by itself and give me a Device Removal error. I have tried them one at a time and only one of the enclosures seams to work without any issues, the other two will work fine on the G4 but not on the intel. One of the enclosures that I have trouble with I formatted the hard drive using the intel Mac with Disk Utility and still no luck. Could this be a driver issue with the intel Mac? I know it's not the hard drive because I swap it into the other enclosure and it works fine. So what gives? Any suggestions would be helpful. Rick
    Mac Pro   Mac OS X (10.4.8)  

    Took your advise and called Apple support concerning this issue. Apple support person was not surprised by the front port causing some issues when transferring large amounts of data. Even though the rear ports could handle this with no problems. He reported that the front ports are similar to a hub and are there for convenience for small transfers and are not hard wired into the motherboard like the rear ports. He suggested that for large file transfers should always use the rear ports or a powered hub such as on the back of the Mac HD Monitor. So there you go... not what I was looking for in a answer but makes sense. Hope this will help others not waste a lot of time wondering why some issues pop up when using the front ports. Rick

  • Device Removal Error Notification

    I accidentally stepped on the USB cable of my external hard drive and my computer showed a device removal error notification and that data might have been lost. I know properly ejecting the hard drive clears out the cache, but how can you tell what data was lost. Is it obvious like an entire folder/file would be missing, or would just pieces of data from a file be missing?
    Also, it said data MIGHT have been lost or damaged. Is it possible that nothing happened at all?

    It could potentially damage multiple files, but I would consider it unlikely. More likely it would damage the disk directory, affecting the entire drive, rather than damage more than the file being written. Again, though, I won't say it's impossible.
    I've also tried to run Disk Utility on it to verify the disk, but it says the disk could not be unmounted
    Got any software accessing the drive, such as iTunes, iPhoto, or anything else that might have a file open on the drive?
    As to your query, what you're seeing seems normal. It's telling you how many files it sees (and "files" do not necessarily equal "documents"; it's what a computer considers to be a file, which can include all sorts of invisible items). As to what "clusters" are, there's a good explanation here:
    http://www.dewassoc.com/kbase/hard_drives/clusters.htm
    Regards.
    Message was edited by: Dave Sawyer

  • Keep losing the card reader

    Could anyone tell me why I can't get a card reader to reliably work with my motherboard?  I have two different computers, two different MSI boards and both will not reliably connect with the USB attached card reader on restart.  The card reader is installed in the case, the usb is plugged directly into the mother board inside the box, and 9 out of 10 times I restart, it will not be found, meaning I go to My Computer and it is not listed there as well as I get nothing when I insert a card.  There is power on the device because it has a power light that is lit, but no action.  If I open the case and unplug and replug the usb cable it will come to life.  Any suggestions?
    Any thoughts or comments are welcome.
    Thanks

    Thanks for the reply and reference to the other thread.  I read all of it and one person there did have my problem, but I didn't see a cure.  All my USB ports work, there isn't a 10th pin connection on any of my plugs, so no cutting is needed, but If I do plug the card reader in while the computer is up and running, it works.  I reboot and it is gone forever (or until I unplug and replug it in again with the computer running).  The UVCViewer does say that there is a problem, but I have no idea how to fix it.  I get this message:
              ---===>Device Information<===---
    ConnectionStatus:                  FailedEnumeration
    Current Config Value:              0x00  -> Device Bus Speed: Low
    Device Address:                    0x00
    Open Pipes:                           0
    *!*ERROR:  No open pipes!
              ===>Device Descriptor<===
    *!*ERROR:  bLength of 0 incorrect, should be 18
    bLength:                           0x00
    bDescriptorType:                   0x00
    bcdUSB:                          0x0000
    bDeviceClass:                      0x00
    *!*ERROR:  Device enumeration failure
    Anyone know how to correct this?  PLEASE HELP, it's driving me crazy.

  • How can I stop iTunes scanning the card reader on my computer?

    OK - its not really my computer thats the issue - its my Granddads.
    Basically, his computer has an internal card reader. When you try to launch iTunes, it fails to open for 30+ mins.
    The cause appears to be the same issue that causes problems if a blank CD or DVD is in the drive - however, it is the card reader that is preventing iTunes from opening correctly. iTunes tries to scan the empty devices - which eventually causes Windows to mark the devices as having a problem and prevents them from working until after a reboot.
    I have confirmed that this is the cause by unplugging the reader internally - however this is not a solution as he needs the USB ports and the card reader slots for his daily use.
    I need to prevent iTunes from scanning these devices.
    Anyone got any ideas? This is urgent.
    System is Win 7 x64 Ultimate.

    Anybody?

  • Is it possible to boot from the card reader?

    With some linux versions out there, you can use liveCD to create a USB linux boot drive to 'dual' boot into linux without touching the internal harddrive.
    The cardreader would be perfect for this as I have some 4 and 8 Gb SC cards, but using F12 at startup, there is never an option to use the card reader device to boot. Looked in the BIOS, but could not see an option to enable this.
    Does anyone know of a way around this?
    Thanks.
    Waste.

    No one responded to your post, strange. When I want to test , lets say, a Compact Flash that has WIndows 98 bootup files on it, and a usb config.sys driver, as the CF slot is from a 7 in 1 FDD and card reader, and I first disable any hard drive in my computer from boot order, etc, so that the bios will be forced to simply search. If there is the possibility of your system to boot up here, it will find the OS and use it. It will tell you if it can or not at this point. Every bios is different in what it will or will not use in the boot order or allow for a bootup device. And I have also read about same thing as you read in re to Live CD. Sorry I have not learned that method as yet. I could never get anything but older OS to boot up off USB thumbdrives, and the like, and hacking the new OS usb load up process is not someting I care to master. If you find a way to do what you desire, please let others know how it went.

  • Cannot use the card reader on my Equium A100

    I've put my SD HC card into the reader, and ensured it's clicked in properly.
    But nothing is happening. I recently reformatted my hard drive.
    Can you please tell me which driver I need?
    I've seen these on the toshiba downloads page and think they might be of help?
    SD memory format, SD secure module, and also SD utilities.
    I hope someone can help me, as I really need to get the info of this card!
    Thanks.

    Hi
    I assume you use Win XP.
    The Flash Media Driver from Texas Instruments is the driver for card reader controller.
    Download it and install it!
    PS: not all cards are supported and compatible so if an card will not work in the card reader then sometimes this doesnt mean that an card reader driver has not been installed
    Anyway, in device manager the card reader should be recognized properly!

  • Eclipse terminates by starting the card reader

    Hello,
    it�s me again. I have a problem with the card reader (Omnikey CardMan 3121 USB) everytime I will start the reader via the symbol I get the termination message and eclipse terminates.
    Perhaps I do the wrong things but I don�t know another way.
    1. Write the code
    2. push the Run-button (and it loads)
    3. I try to connect the card reader with the symbol above the traces to go the same way with the real card reader
    termination
    In the moment I can test the code with the simulation tool but I wants to load the applet to a real card.
    what do I wrong ?
    Thank you very much for your help
    mimaxx

    Hello!
    I think this might very well be a problem with the Omnikey readers. I use a Omnikey myself and the exact same thing happens. What I do to fix it is simply to type "/term" in the JCOP shell terminal window. Note that if you already have an open session with another reather (i.e. the simulator) you will have to close it using "/close" first.
    After you've selected the terminal (card reader), use /card (or even /card -a a000000003000000 -c com.ibm.jc.CardManager, but I find it's sufficient to type /card).
    As I'm in a good mood and it's almost weekend, I'll throw in an APDU trace for good measure:
    cm>  /close
    -  /term
    --Opening terminal
    /cardresetCard with timeout: 0 (ms)
    --Waiting for card...
    ATR=3B EB 00 00 81 31 20 45 4A 43 4F 50 32 31 31 38    ;....1 EJCOP2118
        47 44 54 75                                        GDTu
    ATR: T=1, N=0, IFSC=32, BWI=4/CWI=5, Hist="JCOP2118GDT"
    => 00 A4 04 00 09 A0 00 00 01 67 41 30 00 FF          .........gA0..
    (90537 usec)
    <= F2 04 01 24 4B 4C 38 33 50 48 35 32 32 44 01 03    ...$KL83PH522D..
        FE 90 F2 6A 82                                     ...j.
    Status: File not found
    => 00 A4 04 00 07 A0 00 00 00 03 00 00 00             .............
    (46037 usec)
    <= 6F 10 84 08 A0 00 00 00 03 00 00 00 A5 04 9F 65    o..............e
        01 FF 90 00                                        ....
    Status: No Error
    cm>

  • My Mac Mini will charge - but not sync with - USB-connected devices (ipod, camera, memory card reader). How do I fix it?

    My Mac Mini will charge - but not sync with - USB-connected devices (ipod, camera, memory card reader). I have tried unplugging the devices, restarting the computer, selectively unplugging and plugging in the devices, closing and opening the relevant applications (iTunes, iPhoto, etc). I have tried using different USB cables.
    It's like all of a sudden the synching service stopped functioning or recognizing these devices for some reason. The other ports work just fine (monitor).
    The only USB-connected external device that appears to be unaffected is the USB SuperDrive and it works on all the USB ports into which I plug it.
    How do I fix this?

    Open Console in Applications>Utilities & see if there are any clues or repeating messages when this happens or doesn't happen.

  • Why do imported files disappear after disconnecting the card reader?

    I recently replaced my hard drive and upgraded to OS X Yosemite 10.10. I restored my computer from a backup on an external hard drive. Since then, Lightroom 4 has been losing my files. They appear to import normally and are still in the catalog as long as the card reader is plugged in, but as soon as I disconnect the card reader Lightroom can no longer find the files and they do not show up when I attempt to search for them by name. What's going on? How can I get Lightroom to store my files as it did before?

    Move and Add are normally disabled for non-hard drive removable media. This is to prevent people from losing photos and all the work they might have done on those photos. 
    Normal Procedure is to:
    1. Insert your camera's media
    2. Import into Lightroom using Copy which will make a duplicate of your file from your media and store it on your hard drive (or external hard drive - which ever you specify)
    3. Remove media
    4. Work on your images in Lightroom from the location they were copied to - never from the original media
    Lightroom 4 - Importing and Organizing Your Images | Getting Started with Adobe Photoshop Lightroom 4 | Adobe TV

Maybe you are looking for