Hi, I have the AVIC-F90BT and have owned for a year. Today, when I turned on my car, I saw the lights on "Menu" and "Mao" buttons turned to purple ( they were white color before). After it turned to the main menu (which has "Navigation", "Contact" and "AV"), the sentence "the system is starting up, please wait" would never disappear. But when I clicked into the "AV", the sentence disappeared; however it came back when I returned back to the main menu. The most important issue is when I clicked into the "Navigation" or press the map button, the system will reboot. It seems the system won'
