I’ve burned lates dietpi image to sdcard and it does not boot, black screen.
I did the same using the previous image from https://dietpi.com/downloads/images/old/DietPi_NanoPCT4-ARMv8-Bookworm.7z
and it starts installation process, visible on the screen.
It looks to me HDMI output is not working on the new version.
Is this the same as
No HDMI output after 8.21.1 update on Orange Pi 5 - #7 by Pr3259
Daniel