I would charge the phone and the charge was becoming shorter and shorter.
Good but I ordered the kit with the replacement case gasket. No instructions on your help page for the proper orientation or which side was up/down. Luckily after a bunch of google searches I found my answer. Also, your web instructions down play the importance of hard rebooting the phone once complete. It was required for me. My phone powered on but the time was set to 1969. I did not see this right away and had to search Google for no cell phone cellular connections after battery replacement. I got the time set to the current time and everything was good.
Be careful in opening the phone. The display glass seperated from the white plastic housing frame for me. I could tell this was not right since I could see the home buttons wires were still connected. After getting underneath the white frame, it came apart as it was suspost to. I had to use some super glue to reattach the display glass to the white plastic housing frame.