Micro SD read error

Discussion in 'MacBook Pro' started by thor666, Apr 20, 2014.

  1. thor666 macrumors newbie

    Joined:
    Apr 20, 2014
    #1
    Hi there people I am pretty much computer illiterate so please be a little patient with me if I'm being silly but>>>>>>

    I have this issue when I insert my (SanDisk) micro sd card "The disk you inserted was not readable by this computer." with no option to "initialise" just "ignore" and "eject".

    I don't know if it makes any difference but it was last in my GoPro Hero 3 Black edition.

    Any help would be really appreciated.

    Thank you

    Joel
     
  2. Mato-11 macrumors newbie

    Joined:
    Apr 21, 2014
    Location:
    Slovakia
    #2
    Hi , please tell us what version of OS X are you running ( upper left corner of your desktop - apple - About this Mac ) e.g. 10.6 , 10.7 ...And which MacBook do you have. You should look at your memory card too , there's a capacity written on it - 32,64gb...
     
  3. thor666 thread starter macrumors newbie

    Joined:
    Apr 20, 2014
    #3
    sorry I didn't think about that ..................

    Its a:
    MacBook Pro
    13-inch, Mid 2012
    Processor 2.5 GHz Intel Core i5
    Memory 4 GB 1600 MHz DDR3
    Software OS X 10.9.2

    its a 64gb memory card as well


    I hope thats the right info

    thanks
    joel
     
  4. Mato-11 macrumors newbie

    Joined:
    Apr 21, 2014
    Location:
    Slovakia
    #4
    OK , it seems to be not a problem with hardware or software. The next thing - check what kind of filesystem is on the SD card ( disk utility - your card - filesystem )
     
  5. thor666 thread starter macrumors newbie

    Joined:
    Apr 20, 2014
    #5
    Name : Apple SDXC Reader Media
    Type : Disk

    Partition Map Scheme : Unformatted
    Disk Identifier : disk1
    Media Name : Apple SDXC Reader Media
    Media Type : Generic
    Connection Bus : Secure Digital
    Device Tree : IODeviceTree:/PCI0@0/RP01@1C/SDXC@0,1
    Writable : No
    Ejectable : Yes
    Location : Internal
    Total Capacity : 32.1 MB (32,096,256 Bytes)
    Disk Number : 1
    Partition Number : 0
    S.M.A.R.T. Status : Not Supported



    Like that ?
     
  6. Mato-11 macrumors newbie

    Joined:
    Apr 21, 2014
    Location:
    Slovakia
    #6
    Yes like that.So the partition (card) is currently unformatted with no filesystem and no files on it.If are you sure you dont have any files or videos on it recorded by the camera etc. , go to disk utility , click (highlight) the card , go to erase tab ,click on the format and select MS-DOS(FAT) and then erase.This should be working and you will see your card as a usual drive in finder.
     
  7. Barney63 macrumors 6502a

    Barney63

    Joined:
    Jan 9, 2014
    Location:
    Bolton, UK.
    #7
    Your card is unformatted, that is why it cannot be read.
    It is also 32GB not 64GB.
    Go to Spotlight (the search bar top right of your screen.
    Type Disk Utility and then click on it in the list that appears.
    With your SDXC card inserted you will see it on the left of the screen that opens.
    Click on the card, then choose the erase tab on the right.
    If you want to be able to read and write to it on a Windows machine as well as Mac choose MS-Dos FAT from the format menu.
    Then click erase (bottom right).
    Once it has finished you will be able to put files on it.

    Barney
     
  8. thor666 thread starter macrumors newbie

    Joined:
    Apr 20, 2014
    #8
    it is definitely a 64gb card as it states on the card its self.

    There are some videos and pictures on the card from my recent holiday and when the card is highlighted the erase option and several of the others are sort of "greyed" out so I can't select them.

    thanks

    joel
     
  9. Mato-11 macrumors newbie

    Joined:
    Apr 21, 2014
    Location:
    Slovakia
    #9
    There is a simillar thread on the Apple support forum - https://discussions.apple.com/message/24313328#24313328 - (user Andy Beckett) and maybe it is caused by OS X version - 10.9(theoretically supports ExFAT) has this issue with GoPro and its filesystem.You can try to read the card on another device or with a different version of OS (10.8 would be ideal) or with a Windows PC.
     
  10. simonsi macrumors 601

    simonsi

    Joined:
    Jan 3, 2014
    Location:
    Auckland
    #10
    Relabelled cards are pretty rife in some places (64GB label on a 32GB card). Does the Go Pro see it as a 64GB card?
     
  11. Barney63 macrumors 6502a

    Barney63

    Joined:
    Jan 9, 2014
    Location:
    Bolton, UK.
    #11
    That shows it as only 32MB:confused:
    Just out of interest how much did you pay for it?

    Barney
     
  12. loveperry macrumors newbie

    Joined:
    Oct 14, 2014
    #12
    I have a same question with you guys...help!pls!

    Name : Generic Mini SD Reader Media
    Type : Disk

    Partition Map Scheme : Unformatted
    Disk Identifier : disk1
    Media Name : Generic Mini SD Reader Media
    Media Type : Generic
    Connection Bus : USB
    USB Serial Number : 00000000000006
    Device Tree : IODeviceTree:/PCI0@0/EHC2@1A
    Writable : Yes
    Ejectable : Yes
    Location : External
    Total Capacity : 32.1 MB (32,096,256 Bytes)
    Disk Number : 1
    Partition Number : 0
    S.M.A.R.T. Status : Not Supported
     
  13. KDanzie macrumors newbie

    Joined:
    Oct 1, 2017
    #13
    I am having a similar issue. The SD card is not readable. I have files from a video I just shot and its the main camera. Will I be able to get those files?!?!?! I'm so stressed right now.

    Here is what the information is showing from disk utility
    Volume type : Physical Device
    BSD device node : disk4
    Connection : USB
    Device tree path : IODeviceTree:/PCI0@0/PEG0@1/BR00@0/BR13@1/XHC1@0
    Writable : No
    Is case-sensitive : No
    Volume capacity : 63,864,569,856
    Available space (Purgeable + Free) : 0
    Purgeable space : 0
    Free space : 0
    Used space : 63,864,569,856
    Owners enabled : No
    Is encrypted : No
    Can be verified : No
    Can be repaired : No
    Bootable : No
    Journaled : No
    Disk number : 4
    Media name : Mass Storage Device Media
    Media type : Generic
    Ejectable : Yes
    Solid state : No
    S.M.A.R.T. status : Not Supported
     
  14. ZapNZs macrumors 68020

    ZapNZs

    Joined:
    Jan 23, 2017
    #14
    The "Journaled : No", if being accurately reported, indicates that the file format is NOT HFS+ (macOS Extended), APFS, or NTFS (the journeled Windows filesystem.) That likely leaves us with exFAT and FAT32 (in Mac this is called MS-DOS), both of which the Mac should be able to read (regardless of the partition table.) It seems unlikely the card would be in a more obscure format, unless you or someone else intentionally did this.
    • What brand media card is this? (and where was it purchased? - fakes from Amazon are extremely common)
    • What MacBook Pro do you have and what OS? (specifically, does it support ExFAT and SDXC?)
    • Have you tried this using another Mac? (it isn't completely unheard of for one brand flash drive or SD card to simply not 'play nice' with a specific individual computer, for whatever reason.)
    • If a 2016-2017, what SD card reader are you using? (does it support SDXC?)
    • When you set the card up for the first time with the camera (or another computer), what format procedure and file system did you use? (or did you not do anything and just place it in the camera and began using?)
    If you are confident that this is a file system that should be supported by Mac, and that the SD card reader is both SDXC capable and properly functioning, and are reasonably confident that this card is not a fake (where the firmware has been hacked to make a small 2-4 GB card appear as a 32GB+ card), the next step may be trying to read the drive in Linux, as Linux seems to have better luck reading drives that have both corruption and physical problems.
     
  15. hroymac macrumors newbie

    hroymac

    Joined:
    Apr 4, 2018
    #15
     

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