I have always used this method when i had the 7D and now the 5DMII using the usb cable to get my images off my camera and drag and drop... Then format when i know they all on the computer.. on camera or computer it really doesn't matter.
So for the last week i have been getting the err 80 code camera locks up totally and i have to pull the batteries out of the grip for a few minutes and then re install to get the camera to basically boot up again.. Just upgraded firmware from 2.07 to 2.09 tonight!
I have a Canon BG-E6 grip and canon batteries fully charged on the 5dmII
SanDisk Extreme UDMA 60MB/s 32gb card.. Not the problem!
I need some others to try this out and tell me if they get this same message?
First: plug the usb cable into the 5DMII and turn the camera on to get into the card..
I need to know if you could get in?
I am sure i used to do it this way but it seems i can only do it by turning the camera on first then plugging the usb in?
I haven't had this camera that long and really dislike the idea of sending it off so soon to a canon tech bench