Quote Originally Posted by aeaemd View Post
I have H4D 60 and just installed the firmware upgrade r500. Since the download, I cant get the back to respond. What have I done wrong?
I also get the error message "exposure not possible, check magazine" any ideas?

thank you.
Did you install all updates?

Body, Sensor Unit and Viewfinder?

If not, make sure you complete all, reinstall the Sensor Unit firmware if necessary.