list your devices once more - note the added device
sudo pacman -Syy
sudo pacman -S manjaro-arm-installer
sudo systemctl restart systemd-binfmt
sudo bash manjaro-arm-installer
select target sdcard (be sure you choose the sdcard)
follow the prompts to setup your target system desktop/user/passwd/root
wait until done
I just build an image directly to an sdcard - but as the installer customizes the final image - the image would be of no use to you because you likely want another timezone, locale, keyboard, hostname, username, password etc.
==> on2 kde-plasma install complete
==> Writing bootloader and cleaning up after install...
-> Set boot partition to 44c0af76-01 in /etc/fstab...
-> Set root partition to 44c0af76-02 in the relevant boot script and /etc/fstab...
-> If you get an error stating 'failed to preserve ownership ... Operation not permitted', it's expected, since the boot partition is FAT32 and does not support ownership permissions...
==> Time : 14.42 minutes...
For any other interested with the same problem… here is a “quick and dirty” Solution.
I took the former Image “Manjaro-ARM-kde-plasma-on2-21.02.img.xz” from HERE and updated to the newest Version.
Got some trouble with some Icon-Resource from Theme, but as i ignored this part from update the update could be done.