Can't modify the contents of an SD card, even though it's unlocked

Discussion in 'MacBook Pro' started by jordanh91, Aug 24, 2010.

  1. jordanh91 macrumors member

    Joined:
    Apr 25, 2009
    Location:
    Fail-hio, Fail states of Failmerica.
    #1
    I have a 15" MBP from late 2009 and OS X won't let me modify files on unlocked SD cards. Is it a hardware issue or software, and how can I fix it? :(
     
  2. Corndog5595 macrumors 65816

    Joined:
    Jul 16, 2010
    #2
    Is it formatted in NTFS? If so, then you can only read the contents unless you install a third party plugin.
     
  3. jordanh91 thread starter macrumors member

    Joined:
    Apr 25, 2009
    Location:
    Fail-hio, Fail states of Failmerica.
    #3
    Nope, it's FAT32.


    I can't format it in Disk Util either. :(
     
  4. Corndog5595 macrumors 65816

    Joined:
    Jul 16, 2010
    #4
    can you read and write to it in another computer, possibly running Windows?
     
  5. spinnerlys Guest

    spinnerlys

    Joined:
    Sep 7, 2008
    Location:
    forlod bygningen
  6. jordanh91 thread starter macrumors member

    Joined:
    Apr 25, 2009
    Location:
    Fail-hio, Fail states of Failmerica.
    #6
    I meant non-write-protected. My bad. :)
     
  7. spinnerlys Guest

    spinnerlys

    Joined:
    Sep 7, 2008
    Location:
    forlod bygningen
    #7
    Actually it's my bad, I just couldn't read properly.

    What about using those cards in Windows or have you taken a look at SHARING & PERMISSIONS in the GET INFO window?
     
  8. jordanh91 thread starter macrumors member

    Joined:
    Apr 25, 2009
    Location:
    Fail-hio, Fail states of Failmerica.
    #8
    Hmm, I don't have Windows set up at the moment... I had it but I was running low on space, so I'm making a bigger windows partition and installing it later.

    Anyway, I checked the Sharing and Perms box, and it says "You can only read" :(
     
  9. jordanh91 thread starter macrumors member

    Joined:
    Apr 25, 2009
    Location:
    Fail-hio, Fail states of Failmerica.
    #9
    Should I reinstall os x or is there a way to fix this without doing so? ><
     
  10. spinnerlys Guest

    spinnerlys

    Joined:
    Sep 7, 2008
    Location:
    forlod bygningen
    #10
    Can't you modify it?
     
  11. jordanh91 thread starter macrumors member

    Joined:
    Apr 25, 2009
    Location:
    Fail-hio, Fail states of Failmerica.
    #11
    Nope. :(
     
  12. jordanh91 thread starter macrumors member

    Joined:
    Apr 25, 2009
    Location:
    Fail-hio, Fail states of Failmerica.
    #12
    I hate bumping threads, but is there a fix for this?
     
  13. cjlass macrumors newbie

    Joined:
    May 12, 2010
    #13
    solution to Sharing & Permissions SD card macbook pro

    Solution: reinsert the SD card. After spending ages trying to figure this out, I've discovered that the way you insert the SD card into the MBP's SD card slot alters its Sharing & Permissions. Instead of sliding it in, I gave it a firm tap and Permissions read: read and write. When I slowly slid it in again, no firm tap this time, I got: read only. Bizarre. I assume it's a contacts problem. I found this solution on another forum, so another person had the same problem.
     
  14. fernando.kreutz macrumors member

    fernando.kreutz

    Joined:
    Mar 28, 2010
    Location:
    brazil
    #14
    I found out that the problem is related to the lock sensor on the sd card reader. If you leave the lock latch between locked and unlocked it will work properly
     
  15. Robotoid macrumors newbie

    Joined:
    Oct 31, 2012
    Location:
    UK
    #15
    Finally!

    This has been driving me crazy! Just bought a 8gb Sandisk SD card which writes well in my wife's VAIO but is 'read only' in my MBP. I did the above and with the switch at very nearly half way down it gave me 'custom access', but still couldn't write. Then a millimetre more and it gave me the coveted 'read/write' access and disk utility could find it (though still can't format - had to use the VAIO).

    So something wrong with the MBP hardware then?! Pretty frustrating...
     
  16. fernando.kreutz macrumors member

    fernando.kreutz

    Joined:
    Mar 28, 2010
    Location:
    brazil
    #16
    I believe the issue is with the size of the latch on the SD cards, since some work very well. If you notice, those that have this issue have a very small latch. Don't know for sure though.
     

Share This Page