English isn’t my first language, so please excuse any mistakes.
I use Core Qt Image (, generated U-Boot and Kernel 4.4.y (http://wiki.friendlyarm.com/wiki/index. ... load_Links).
At device after start linux running own Qt program. It works very well.

Now I need some possibillity do recovery system. How can I do that?
I'm new in linux and embedded devices so you must be very specific please :)

Thank you, for any help.