Welcome to the forum. Your new friends here have a wealth of experience and knowledge. Almost every one here is Thor, so if you want quality answers, change your profile to reflect brand and model.
Sometimes pictures help explain a question. In this case, I would be willing to bet your side screens are easily removed by gently pushing them upwards then pulling them in from the bottom. Without specifics, thats what we used to call a SWAG. As in "scientific wild a$$ guess."
You wouldn't be the first to post a question and then ghost. That's a sure way to alienate your new forum friends!