Debian 12 Emmc Rock64 does not Start

[gedas07]

I downloaded the image and do the image with this instruction but when i put the Emmc in the rock64 does't start nothinh , no log , no image , nothing , what I do wrong?

wget https://dl.sd-card-images.johang.se/boots/2024-08-01/boot-rock64.bin.gz
wget https://dl.sd-card-images.johang.se/debians/2024-08-26/debian-bookworm-arm64-iefae3.bin.gz
zcat boot-rock64.bin.gz debian-bookworm-arm64-iefae3.bin.gz > sd-card.img
and

sudo dd if=sd-card.img of=/dev/sdd status=progress