I first tried The New, 2022 bought g7x mark ii with the blue sandisk class 4 sdhc 8gb and I was able to take pictures. But trying the SanDisk extreme pro 64gb 200mb/s it says memory card error, I also tried with other SD cards it says memory card error,
You might also try formatting the card first in a desktop or laptop before putting it in the camera. If you don't get the card error message then also be sure to do a low-level format in the camera before using it.
