green screen is observed since khadas updated android (emmc) VIM3_Pie_V190907.7z. Dual-booting coreelec (CoreELEC-Amlogic-ng.arm-9.2-nightly_20190915-Generic.img) from SDcard will still present green screen.
its seems a patch is needed, https://forum.khadas.com/t/khadas-vim3-coreelec-all-work/5043/15
