Adan

OK now I understand.  It is common to have incompatibilities between older TV boxes and SD cards.
 
You also said you: 
Which sd card was that with?  Obviously if the box can't read the one card, nothing is going to work with that card.

Why?

Have you opened the case and looked for one?

While unlikely, it could be on the other side of the motherboard.

The current builds do not even include the aml_autoscript.zip file because it is rarely needed.  There is nothing special about this file it is a zero byte dummy file, that is supposed to trigger the loading of the aml_autoscript file via some update apps.
 
 

Another way of triggering the running of the aml_autoscript file is to issue a 'adb reboot update' command through adb.
 

There are different types of update apps, so when you run the update app on the old 5.9.0 build do you see the same interface as this how to article shows?  

From the picture your box is a rebranded m8s pro+, as indicated by the board markings.
In googling I have found the following like that shows someone being successful at installing Armbian (http://www.galipe.net/guide-mecool-m8sproplus-armbian/). (article in French, I used Google translate)
So it should be possible.
While those instructions are old, they show that it should work.