Bought the iPhone 6 Replacement Battery / Fix Kit did the steps, had a bit of a hard time getting the adhesive strips off, but other then that, not too bad. I do have the white lines showing up only at the top of the screen, but the thing that is worrying me now is that the side where the new replacement battery is on is overheating rather quickly. I mean, I'm browsing the internet on safari and it gets really warm after 3-5 minutes. Any advice as to what I should do for the overheating?