I remember something, that it was going slowly along this road, but if only it happened, it would be something. I just need to find that interface, but I'll probably do that tomorrow. If I have any success, I will write. Thanks for your help so far and best regards.
Added after 30 [minutes]:
Because I am quite an impatient person and according to the principle of what you have to do tomorrow, do it today, so I did. I found the right adapter, editor and the image I was after but lost. Everything started beautifully with the message that it will last 300 seconds and everything reached the final without any errors, but the display remained white.
It follows that something happened to the display itself, hence the negative effect when uploading from the card. There is probably nothing that can be done about this problem, anyway I have no more idea and now I'm really done and thank you again for your time.