manquizur Report post Posted October 9, 2016 I discovered that my F920BT worked perfectly and didn't restart (reboot) when I started the car. It never had updated the firmware, but today I updated the firmware to the latest version (2.00300) published by Pioneer. My surprise was that after the firmware update my AVIC F520BT restarts (reboot) when I turn on my car. How can I do a downgrade to know if the error is the firmware ???? Has someone had the same error ???? Thanks. Share this post Link to post Share on other sites
