SteeMan

What about the step of selecting the uboot?

Those are not the correct instructions. Please follow the instructions linked off of the download page: https://www.armbian.com/amlogic-s9xx-tv-box

truck.xxx builds are daily/weekly rolling release builds and are not archived.

First some logs would be helpful. You may have to solder a usb-uart connector to the debug uart pads on your board to get boot log information. Without knowing what is going on, diagnosis is difficult. Second, you don't say which u-boot you are using. Can you provide that information? Finally, why are you using the wetek-play2.dtb for this box?

That is true that there are images that target server vs. desktop. But they share the same kernel. I find what you are working on an interesting idea. Good luck getting it working.

Ultimately, once you have this working, you should submit a PR and justify the inclusion of this feature with details on the pros and cons.

How much size does it add? Remember there are a wide variety of boards supported some with limited storage and ram.

@naceur abdelkader Your post has nothing to do with Armbian. Please find a more appropriate site to ask your question. This site is for Armbian linux.

Have you tried all of the gxm dtb files? Per the instructions (https://forum.armbian.com/topic/33676-installation-instructions-for-tv-boxes-with-amlogic-cpus)

In the world of TV boxes "identical looking" means nothing, as manufacturers build each batch with the lowest cost components available at the time. There are many cases where identical looking boxes even contain different cpus ( ie amlogic vs rockchip). My recommendation would be first to verify the markings on the boards (there is usually some sort of board identifying text on the board)to really see if they are the same under the hood.

You aren't using Armbian. The balbes150 builds were a fork of Armbian and know one here would know what sources they were built with. So this question is really off topic for Armbian.

Note that I believe Armbian will reset the max CPU frequency on boot. There is code in /usr/lib/armbian/armbian-hardware-optimization that uses the values defined in /etc/default/cpufrequtils to initialize the governor, min and max frequencies at boot time. So even though cpufrequtils is no longer an installed set of tools, Armbian is still doing some of the same work based on its old configuration files. So assuming this works as it used to, all you should need to do is set the max speed you want in /etc/default/cpufrequtils

There aren't any Armbian builds for 5.15 is what I said. And it would be a lot of work to make that happen. Why do you want 5.15? How do you know that would work, when 6.12 doesn't?

There are no Armbian builds that old, in fact Amlogic TV boxes weren't incorporated into Armbian until later Linux kernels. What you must have been using would most likely have been a fork of Armbian. What you are asking for isnt possible in the way you are asking. You essentially want Armbian ported to the 5.15 Linux kernels, which is a huge project. You would be better served but spending a month or so figuring out why current kernels don't work for you and fixing that.

Moved to proper forum