Hello Karsten,thank you for your action and the information. I will quickly test the new installer when available.
For the future, Olimex is working on a firmware that will make possible a single installer for all their A20 boards. Nice ! For more information, have a look to the blog :
https://olimex.wordpress.com/2017/12/04/olinuxino-eeprom-content-one-step-ahead-to-single-linux-image-for-all-a20-boards/ Regards Jean-Louis