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EOS M100 Format SDHC Card


Hello everybody!

I have a problem with my EOS M100 and my Lexar 16GB SDHC. I have always used this SDHC and it has always worked. Now I downloaded the photos on my mac and I deleted everything on the SDHC. When I put the SDHC back in the camera it did not work anymore, saying "memory card error". The card is not on locked position and unfortunately I cannot format the SDHC card from the camera itself because the option "format" is grayed out in the menu.
Any idea why this happened?
Thank you everybody



Sounds like a memory card failure and time to try a new one.  Be sure to only use the full size memory cards, not the micro-SD cards that require a plastic adapter in order to use it in the camera.

"The right mouse button is your friend."

Rising Star

Did you format the card in the Mac, to the Mac format type? The camera can't read that.

Can you format the card in the computer to FAT/FAT32 format? Or format it on somebody's Windows or Linux computer to FAT/FAT32?


As Norman said, the Mac format is not compatible with the camera format.  If you cannot find a windows computer, try to see if the Mac will format the card in FAT32 format.   If you can get the card to FAT32, then format the card in the camera.

Formatting the card, rather then deleting all the files is definitely the way to go.  However you should not format the card on any other device than the camera to avoid any incompatibility issues.

cheers, TREVOR

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