Thanks a lot for these hints @cb182d! I have two questions:
1. when you say it's only useful for a headless setup is that because the display drivers are not expected to work? Or are there other things that won't work?
2. With this setup will I be able to flash kernel updates with a regular apt-get update from the repos?
I've flashed the files created by "build/mk-uboot.sh rk3399-firefly" as described above, but I'm getting exactly the same error as @markwylde first reported: "LoadTrustBL error:-1".
@markwylde, did the above steps resolve the problem for you immediately, or were there other issues to be fixed?
