I have to agree. Step six is not easy to "reverse." I had difficulty getting ribbon 3 in place, and I understood where to place it. I grasped the ribbon with some forceps to slide it in, but given the tiny space, this was tricky. I'm not sure if it is in place properly, or scratched, or what. But the earpiece does not work properly, and I cannot reliably place or receive calls now (bad signal?). What sort of tool would help get this little piece in place properly??
Be cautious! Or you could "spudger" your home button circuit in two at this point!