Trouble with SD card

Hello!

I have trouble with my Cr-10 smart pro. When i put the sdcard in the printer, it showes no files, and then the

printer Freeses, I have to remove the power cord to restart. I have tried with diffenen sd card for 8 gb uoo to 128gb. I have also renamed the files som it contains only 3 leters. Dose any one kow anything about this isue

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