Help! Last time I used blinds, I’ve heard some scratching noises and they got stuck. Remote works but blinds don’t respond. Blinds mechanism and building is from early 90s, already tried to ask at general handyman but it seems to be more luxembourgish innovation. How should I open it?

Before calling professional I wanted to at least have a sneak peak inside, maybe it’s some obvious issue that is easy to remove. Yet I failed with opening the “cover”. I already removed layers of pain from the edges of the “cover” to ease out eventual movement of it.

Yet screws seems to not working as I thought. They move but not really “unscrew” anything, if you know what I mean.