I think you are getting closer. I ran the application if attempted to load the firmware and when I check the web page it does say 2.0.6. All of my settings have been erased.
However, there appears to be several error messages. I would love to provide them. But, that is not possible with the existing update application. The scroll does not flow smooth enough to read all the messages, let alone, be able to hand type each character (I tried). There is no ability to copy the text in that field. I cannot find where these messages might have been written to a log file.
PLEASE, PLEASE, PLEASE, help me to help you. Provide some means that I can share the error messages. Also, as important: Provide a means to backup and restore of the settings.
Now, I am unsure if this will work.