Chosen Solution
How are you supposed to refit the blue cap, seems like a poor design, ive barely used my kit and the stupid blue cap which is screwed in just undoes, seems like a stupid design to me. Surely this has happened to others, cant figure out how to get it back on.
Hi, Contact iFixit about the problem and get a replacement. There is a lifetime warranty on most tools sold by iFixit. Here’s a link that may help. There is a Contact us link in the article