09-22-2018 12:39 PM
10-01-2018 02:11 PM - edited 10-01-2018 02:13 PM
Where did you purchase the card? Apparently there are some shady online vendors selling counerfeit cards labeled just like the brand name cards. If the price seemed too good to be true, this may be the reason why.
You might also try formatting the card in another Canon camera, if one is available. Or try formatting it in a desktop or laptop computer. Either way, if it allows your G7X to recognize the card, be sure to format it again that camera as well.
Also set the calendar and clock in your new camera too.