I faced a problem with my 32 GB SD Card on Samsung Galaxy Grand Prime. Device says Damaged SD card. I changed it to a brand new (also 32 GB) SD card... And problem didn't gone. Each card read perfect via card reader, but not on my phone.. What can I do?

  • Cell phone and Android questions are off topic here, so this is being voted to be migrated to the proper site to get you the help you seek.
    – CharlieRB
    Apr 26, 2016 at 11:51
  • Run chkdsk [SDCard Drive Letter] /r where [ ] is where you will put the drive letter. so the example will look like this chkdsk D: /r Example drive letter being D run that then try your card. Apr 26, 2016 at 11:51
  • @NetworkKingPin On Windows?
    – Daria
    Apr 26, 2016 at 13:10
  • Yes that is for Windows. On command prompt forgot to say that Apr 26, 2016 at 13:26
  • 1
    If two cards have become damaged it would suggest that the card reader in the phone is broken.
    – Burgi
    Apr 26, 2016 at 13:55

2 Answers 2


The grand prime is known to cause electrical damage to sd cards and without warning. I have two of these phones and they each destroy an sd card every 3 months. The cards may have self sensed damage and dropped into read only mode, in which case you can read them with a usb reader on a desktop but the phone will refuse to mount at all, and the will not be writable in any case.


Sounds like it's the card reader in the phone if the cards are working perfectly with other card readers. Also alot of people with the grand prime have been having the same problems at you.

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