I thought I did everything correctly but my phone didn't power on as I thought it should. I went back and double checked that everything was connected correctly (which I hope it is and I didn't damage anything in the process) I figure maybe the battery has to charge but usually once it plugs in after a few minutes it shows that its charging and in this case it is not charging. Also, I received a liberation kit with a small piece on it. Can you tell what this is for?