In order to avoid loss of files, you need to follow some precautionary measures like instantly take backup of your important files and do not remove the memory card abruptly even though you are not performing any action on the files present on the memory card.

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in order to avoid loss of files, you need to follow some precautionary measures like instantly take backup of your important files and do not remove the memory card abruptly even though you are not performing any action on the files present on the memory card.