I get this error too with Armbian_22.08.8_Nanopim4_jammy_current_5.15.75_xfce_desktop.img
I checked both images on my nanopi m4 and found that unsupported image for nanopi-m4 does not work on it. But image for nanopi m4 v2 (Armbian_22.11.1_Nanopim4v2_jammy_current_5.15.80.img) works on nanopi m4 and I think that probably on nanopi m4 v2 too.
Somewhere in this forum I saw that if one image can run on several devices that image will be supported, so I think that it is good to have one image for both nanopi devices. it should be mentioned that v2 image supports v1 device, so users won't doubt.
