So, I did some work and found Android 11 & Android 12 for the 8257 and both works, great. Along with the MCU update. The AC8257_Android_scatter.txt, found in both android files are known as project ac8257_demo, with platform MT6761. I have found that these android files are used by other head units such as Bosion ( true B200, I have it), Eunavi, VW Skoda Seat, and others that use ATCUPG update.The kernel version of the 8257 head unit is 4.9 and is one of the most stable kernels out today...Read more