I just repaired a fellow coworker's phone. I have repaired several iPhone 4s models. So this phone had a colored piece on top of the home button that my coworker attached to match her phone cover. When I was replacing the display I could not get this colored piece off. I have put the phone back together and everything works correctly except for the home button! Any suggestions? I did not rip the cable that is attached to the home button! I need help! lol.
The cable is folded up under the new display, take it off and look carefully as you put the cables through the hole. Guide them through. You may have to push digitizer cable to the right a little and watch it from the side until the new display is completely touching the front of the phone. If you pull the cable it will rip it in half then you have to buy another display! There are other posts about this issue. This happened to me with my first phone repair, an iPhone 4s. Also posts in guide for the ATT 4s display guide!