Even using my original home button assembly, Touch ID fails after installing this new assembly. I believe that iFixit's display assembly is of poor quality. This is not my first time doing this sort of repair, and I have been successful in the past. The home button link cable (the one that runs from he home button out the top of the screen assembly) is built into this unit, so there is no way to use the original one for this design as iFixit suggests on other forums. Extremely disappointed - for $50 more I could have just taken my phone to Apple for a replacement, saved myself 5 hours of frustration, and had a working Touch ID!!!