Canon EOS 250D Advanced User's Manual page 438

151: Transmission canceled
Automatic image transfer to the computer was somehow interrupted.
z
To resume automatic image transfer, set the camera's power switch
B
to <2>, and then set it to <1>.
152: Card's write protect switch is set to lock
Is the card's write protect switch set to the locked position?
z
Slide the card's write protect switch to the writing position.
B
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