We are getting to disconnect the battery and our digitizer cable.

As on the photo (Where I'm showing my finger.) This is the battery plug. Remove the black tape that is covering. Save that for later if the adhesive is good.

Also while we are the as I call "Rubbery cable city." The importance of this repair is disconnecting the digitizer cable. on the second photo on top, there is a big cable. Disconnect that. And here comes the hard part.