My nikon d3400 shows This memory card cannot be used. Card may be damaged. Insert another card. The error shows after taking one or two photos. I formatted in the camera but still the error shows. I formatted in computer but still no help. It is toshiba 16GB SDHC. In computer I did fat32 file system format. The error shows after taking one or two photos.


1 Answer 1


The card is defective. Throw it away and get a new one.

Even if you could make it work, it could no longer be relied upon.

  • Bought new one working fine till now
    – Neetu
    Jun 27, 2020 at 12:36
  • The card can be used on other devices viz. other brands of cameras, laptops etc. It could just be a random compatibility issue, however keep in mind that it is somewhat risky. I noticed this happening with 64gb Samsung micro-sd cards that come with SDHC adaptor - but never with standard SDHC of any major brands. The cards that don't work on my Nikon d750 work just fine on my d800e.
    – raviputcha
    Jun 28, 2020 at 0:56

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