SteeMan

@Maurizio Finesso Try editing on a linux machine instead of windows. I've seen some windows machines not be able to read the boot partition

Moved to the correct sub-forum

This site deals with Armbian Linux not android. You should direct your question about restoring Android to a more appropriate forum

Please provide more information on what your are experiencing and what you have tried already

moved

I just noticed from your screenshot that you aren't using Armbian. You need to ask support questions for non-armbian software from where you got your software. Ophub is a fork of Armbian that used the Armbian name without permission. They do not contribute to Armbian development nor do they contribute the these forums.

So you are saying that when you copy the working SD card install (by working I mean that it has the correct memory amount) to emmc that the problem occurs?

I am going to just point you first to the installation instructions on this site. What dtbs have you tried? What build are you using? What uboot are you using? This is important: have you ever booted anything other than the native android on this box? (Is so read the instructions about that). You really need to hook up a USB uart to get the boot output to understand what is happening. And if the button you labeled blue gets you to recovery that should be the button you want

Note that ophub is a fork of Armbian. They do not contribute to Armbian development nor do they participate in these forums or in anyway do they support Armbian.

Try a build using a newer edge kernel as a test

You can try different dtbs, different sdcards (older/smaller/slower = more compatible) and potentially a newer or older kernel. These failure to read the sdcard have been occuring more and more recently. No one has had time to reproduce and figure out the cause. I didn't see where you mentioned what build you are using, that would be helpful information

From what I see online that box has an s905 amlogic CPU

What settings have you tried? dtb, uboot?

Armbian does not support the s905x4

I don't think you understand how Armbian works. This board is community supported. It does not and hasn't been an Armbian supported board. Given the hundreds of boards out there Armbian only has the resources to officially support a handful. The rest end up being supported by the user community like this board. Thus support is only as good as the community volunteers who have the board and wish to volunteer their time to support it. Armbian provides the tools and infrastruction to make supporting boards easier, but the work still needs to be done by someone for community supported boards like this.