Ursprünglicher Beitrag von: kaniggit49 ,
You have multiple possibilities with this one. 1) The home button cable was not properly connected to the board. 2) The home button cable was torn during the replacement, which can especially happen when taking off the broken digitizer if you go too far in with your iSesamo or opening tool. 3) The home button was not placed exactly the way it needs to be with the new display. It is very finicky and needs to be spot on. 4) Board damage where it connects. Your best bet would be to careful open the device and double check that list. Here is the [guide|28607|guide that goes through a front panel replacement] and has pictures around step 39 for the home button.