How To Fix/Repair A Corrupted Sd Card Or Usb Flash Drive?


How To Fix/Repair A Corrupted Sd Card Or Usb Flash Drive

How To Fix/repair A Corrupted Sd Card Or Usb Flash Drive

But, sometimes, users might face certain issues with these portable SD cards about the inaccessibility of data. SD cards might get corrupted, formatted or even damaged, which results in the disappearance of all the stored photos, videos, and other files. And it may make users feel heartbreaking.

Usually, this situation initiates with an error message. If not handled properly, it can leave you in a permanent data loss situation which causes difficulty in SD card recovery.

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Look for these following symptoms :

  • While trying to access your photos or videos stored on the card, you may get error messages saying that ‘memory card error’ or ‘corrupt memory card’
  • You may find some of the photos on your SD card missing.
  • When you try to take a picture with your camera, you may not be able to do so, as a black screen appears along with an error message ‘SD card is not accessible. The file or directory is corrupted and unreadable.’
  • Or, when you try to read the SD card through a system, no folder appears, or all the folders do not open. It shows an error message saying, ‘Read / Write error on SD card’ which indicates that it cannot read from the device.
  • Even if your SD card is recognized by your PC, you may not be able to see any stored photos or videos. It shows an error message saying, ‘SD card is not formatted. Do you want to format it now?’
  • And, sometimes, you may be able to see the contents of your SD card in your camera as well as in your system, but you cannot copy those contents. You will get an error message saying that disk is “write-protected.”

But don’t worry. If any of these issues arise, there is no need to throw the USB Drive away – YOU CAN FIX IT!


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Whenever your SD card or USB flash drive gets corrupt, there is no guarantee that you will always recover your data back. In the case of physical damage, you may not be able to repair it, but a software error can be fixed in some simple ways.


At times, some of the devices may not read an SD card, due to some unexplained reasons. Therefore, try to connect your SD card to another device.


  • Insert the corrupted memory card into a card reader, and then connect the card reader to your system.
  • Go to “My Computer” and search for your SD card under “Devices with Removable Storage” and note the drive letter assigned.
  • Now open RUN on your computer (Click on the “start” icon and enter “search for program” then type in RUN).
  • Type in “CMD” in the provided text box to bring up a command prompt, from where you can fix your corrupt memory card
  • Type “chkdsk” followed by the drive letter corresponding to the SD card then by a colon and /r. (Example: Chkdsk e: /r)

The ‘chkdsk’ command checks a disk for structure corruption. The e: tells it what drive letter to use and the /r tells it to repair the issues it finds.

  • After you press “enter”, the Chkdsk will check for possible errors and try to fix the corrupt SD card.
  • Follow the subsequent message prompts.
  • Chkdsk will report back what it has done and then go to my computer and check out your drive to verify if the files are recovered or not.

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  • Insert the corrupted memory card into a card reader, and then connect the card reader to your system.
  • Right-click on the drive and select “Properties”.
  • If you can view the used space on the card and if it shows all or almost all free space, then either all the files have been deleted, or the directory has been erased.
  • In this case, you can use a Sandisk inbuilt solution that might restore all the deleted files easily.


  • If you can read all the files on the card but cannot save them, then your card might be in ‘write protected’ mode.
  • Hence, unlock the option to save or modify files on the card.
  • If still, you are unable to read/write to the card, then your files are possibly lost or have become inaccessible.
  • To fix/repair it, you can use a disk diagnostic tool that can work on memory cards too.
  • But, even though, you can get access to your card by reformatting it, it will erase everything on the card.
  • So, make sure that you have recovered all the stored files and copied everything to your system before formatting your SD Card.


If you have accidentally formatted your SD card or deleted important files, don’t worry. There are many SD card recovery tools available online such as WinRecovery Software or EaseUS Data Recovery Wizard, which are efficient enough to restore your lost, deleted and inaccessible files from the SD card. You just need to choose the right tool among the number of available tools.


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