Hello,
I’ve just tried to boot the theoretically universal Armbian_5.72.1_Olinuxino-a20_Debian_stretch_next_4.19.17 image (taken from ftp://staging.olimex.com/Allwinner_Images/A20-OLinuXino/1.latest_mainline_images/stretch/images/) on my A20-SOM device, but with no success.

The following output is displayed:

**File not found /boot/dtb/ **
libfdt fdt_check_header(): FDT_ERR_BADMAGIC
No FDT memory address configured. Please configure
the FDT address via “fdt addr ” command.
Aborting!
** File not found /boot/dtb/overlay/sun7i-a20-fixup.scr **
…
ERROR: Did not find a cmdline Flattened Device Tree
Could not find a valid device tree
SCRIPT FAILED: continuing…
Card did not respond to voltage select!
…
Device 0: unknown device
ethernet@01c50000 Waiting for PHY auto negotiation to complete…… TIMEOUT !
Could not initialize PHY ethernet@01c50000

I’d really appreciate any help with this, because I really need to make this work!!

Thanks in advance

1 hour ago, roderick said:

**File not found /boot/dtb/ **
libfdt fdt_check_header(): FDT_ERR_BADMAGIC
No FDT memory address configured. Please configure
the FDT address via “fdt addr ” command.
Aborting!
** File not found /boot/dtb/overlay/sun7i-a20-fixup.scr **

It seems that few files are missing ...

Can you check "ls -l /boot/dtb/*" ?