My AVIC-F900BT started having reboot problems after I took my vehicle in to have the check engine light fixed. It would go into the start up mode with the Pioneer logo start up and then it would shut off completely and go dark. I looked on here for links for update software but all of the links seem to be dead. So, I went to the pioneer website and used the update. However, now all I get is it starts up and stays in the pioneer logo screen and I am able to push menu and get into the menu, but nothing else works. It says I lost all my maps and it has the latest version from Pioneer on it.