Thank you very much. Unfortunately, Trixie won't start.
BootROM - 1.73
Booting from MMC
BootROM: Bad header at offset 00000200
…
BootROM: Bad header at offset 02E00000
BootROM: Bad h
Trying Uart
Does this mean that the latest version on which OMV7 can be installed is the following?
https://fi.mirror.armbian.de/oldarchive/helios4/archive/Armbian_25.8.1_Helios4_bookworm_current_6.6.101_minimal.img.xz