Looks to me like the bulletin may be for a loose screw which may, in conjunction with the firmware update, may be the issue in a nutshell. The screw could be linking circuits that we're otherwise unused under different firmware and the firmware may be fine. Just a thought. No offense, but the OP did have a screw loose. Unless the firmware is taken offline, thats what I think.
|Douaumont Ossuary by Eric 54-BNF|
from Armistice Day
|Silhouette at sunset by Jill Hancock|
from Portrait Lens (around 80mm or equivalent - please check the full rules)