It will transfer the serial number from the old screen to the new screen so it will keep tru tone. You can also transfer the serial number from the battery I'm not sure if it will turn off the notice that it's not the original battery. You can also transfer the information for the tapic engine so. It will keep some features. The home button you can transfer the information and it will keep some features but it won't make touch Id work and it has to be their home button brand. I would like a little more information myself to see if you transfer the information from a battery does it show that it's factory or does it show that it's aftermarket.