Problem booting from sd-card

[jezek]

Maybe its something else:
I saw in the script on https://forum.pine64.org/showthread.php?tid=4998 the following line just before the dd-command:
umount -f /dev/mmcblk1*

I didn't do that.... Maybe that's the problem?...... But is it possible to dd to an unmounted sd-card?... Apparently it is if iI read the script right.....

Last week I tried to write numerous images to SD card using the "dd" command (but not armbian). It worked every time, without unmounting the drive first. No problems with boot. Edit: Maybe it wasn't mounted yet, that's why it worked. :/

But give the unmount a shot.
Edit: It is wise to unmount device before dd to it. Or you can end up with corrupt result.

Have you tried any other image than armbian?