Canon EOS M200 Advanced User's Manual page 50

Inserting/Removing the Card
When the access lamp is lit or blinking, it indicates that images are being
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written to, read from, or erased from the card, or data is being transferred.
Do not open the card slot cover or remove the battery at this time. Also,
never do any of the following while the access lamp is lit or blinking.
Otherwise, it can damage the image data, card, or camera.
y Removing the card.
y Removing the battery.
y Shaking or striking the camera.
y Unplugging and connecting a power cord (when household power outlet
accessories (sold separately) are used).
If the card already contains recorded images, the image number may not start
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from 0001 ( = 430).
If a card-related error message is displayed on the screen, remove and reinsert
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the card. If the error persists, use a different card.
If you can transfer images on the card to a computer, transfer all the images
and then format the card with the camera ( = 435). The card may then return
to normal.
Do not touch the card's contacts with your fingers or metal objects. Do not
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expose the contacts to dust or water. If smudges adhere to the contacts,
contact failure may result.
Multimedia cards (MMC) cannot be used. (Card error will be displayed.)
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