there is no SSH server in the image about binary HOT 5 CLOSED

More than likely something else is going on here, as all the imgs come with openssh-client openssh-server.

Have you created a user/password using the /boot/useraccount.txt file?
Has the ROOT filesystem resized/expanded during first boot?
Do you have any logs I can see?

from binary.

This img is using a different version of u-boot and rootfs type. Let me know if you continue having any issues: https://github.com/pyavitz/binary/releases/download/images/rk3399-nanopi-r4se-debian-bullseye-6.0.10-arm64-ext4-2022-12-02-1114.img.xz

from binary.

Have you created a user/password using the /boot/useraccount.txt file?

No. I can't figure out where and when to create this file.

This img is using a different version of u-boot and rootfs type. Let me know if you continue having any issues:

It can be seen that the system has received an ip address. But the scanner of available ports shows only 25, 110, 119, 143, 465, 563, 587, 993, 995.
There is no open port 22 (SSH).

from binary.

Well that's why its not working, because the system is hung up waiting. https://github.com/pyavitz/debian-image-builder#usage

You need to be able to mount the img after flashing it to an SDCARD, so you can input your username and super secret password.

from binary.

Thanks. Now the system has booted up and is accessible via SSH.

from binary.