john deer 0 Report post Posted November 30, 2017 Andriod 5.1 beta update I have the ATV380 unit that has been working fine, but I decided to upgrade to the android 5.1 firmware. All went fine as the video and I did see the lollipop logo and then it went to a blank screen with the word (format not accepted). Now what do I do nothing will work! Is my box that worked before broken for ever? Not very happy! Share this post Link to post Share on other sites