Having the idea of number code and key makes me happy. The materials used to see quality of (sheathed cable). However, the attachment to the laptop needs a lot of exercise. We sat here for two sure ne quarter of an hour, until it worked reproducible because the manual does not really help. Man with his left hand pulls back the bolt. With your fingertip on the same hand you have to push firmly into the opening at the same time the entire part. The right hand then rotate the opposite circular portion by about one eighth of a turn. Unfortunately, it is difficult to grip properly due to the small width of the part here.
Meanwhile, it'll work just fine and I am satisfied.
-1 Star for the instant replay button -1 Star for the poor guidance