When you download Tinker Board R2.0 /Tinker Board S R2.0 Android 12 V0.0.3 it shows that source code is available on https://github.com/TinkerBoard-Android
But actually there is no Android 12 source code available by that link. The latest source code available is Android 11.
Dear Tinkerboard team, please upload Android 12 source code for Tinker Board R2.0 /Tinker Board S R2.0 on your github.
Looking forward to your reply.