I have a basic Brother machine and when the needle threader stopped working (after checking numerous times that the needle was in correctly) I got a magnifying glass out and could see there was a little part that was bent. I looked on the internet and can't remember if it was a You tube or something else, but, it was very simple to take the bent part off, bend it back, and put it back on. It works great now. It wasn't hard and I figured if I screwed up I could always take it to the OSMG.