I have the AVIC-F900BT and my screen went blank one day and see that its the firmware issue.I found the answer to repair the issue but when I get to windows CE it will go blank on me and I dont have enough time to fix the problem before it goes blank.It seems like it will go blank over a period of a minute or so.How can I keep the screen on so I can repair the problem even in testmode it will go blank after a minute or less.Any help would be greatly appreciated!