RickyHP Report post Posted October 1, 2016 Hi all, Well I tried updating the firmware for my Pioneer F940BT. I downloaded the file from the orginal pioneer website. I got into the update menu, and it said it was erasing in the Ucom after that it gave me an CSS Error. I dont have a backup of my Pioneer, how can I reinstall it? The radio now only gives me a black screen and no reboot at all. Unit didnt want to turn off, so I had to disconnect my car battery. Could anyone help me? Thanks, Share this post Link to post Share on other sites
krodik Report post Posted July 13, 2018 Hi, Did you fix it? I'm in the same boat. Share this post Link to post Share on other sites
