PINE64

For anyone on a Mac of Win machine, having trouble with the instruction to edit armbianEnv.txt:

1. Windows and Mac cant out of the box mount the eMMC (and SD I suppose), so you can't edit /boot/armbianEnv.txt
2. If you don't have a linux box at hand, you can use VirtualBox with USB passthrough, following this tutorial:
 https://www.linuxbabe.com/virtualbox/acc...x-guest-os

After configuring the attaching the USB device with your virtual system you will be able to mount the partition and edit the file.

I am having issues using Twister on a Pinebook pro.  This is probably a noob question.  The instructions say after flashing the twister image to edit the /boot/armbianEnv.txt file.  But this file is read only - (I assume because the partition is mounted).  And I haven't been able to figure out a workaround.   Can anyone explain the process of editing this file?

Installing a clean v2.0.3 on rockpro64 works at first.

but after doing apt upgrade and waiting for it to upgrade all the files, it is broken. the display flickers on for a half second. then off for 2 seconds. repeatedly

any idea how to fix this?

the armbianEnv name remains the same. (although I noticed the dtb version updated from v5 to v6 and freescale, amlogic, and allwinner folders were deleted)
changing
fdtfile=rockchip/rk3399-rockpro64.dtb
to
fdtfile=rockchip/rk3399-rockpro64-v2.dtb
makes it stop booting. so it seems to be loading the right dtb file.