I had abandoned the camera for some days, but now that I read this I guess mine is F... up, and I'm gonna have to send it to service center. I did firmware over wifi. It's also worth mentioning that when you download FW from their website is in a ZIP file, you need to unzip/extract in order to use it. Not "extracting" it is the reason some people, like myself, were having problems with update, and the " image is corrupt" message.
As stated before this camera is NOT for people with no IT knowledge.