Hello, I cracked my screen, replaced it cheap, very cheap actually. Put it in myself. I see there are 3 ribbons, 1,2,3 I think 1 is for the LCD display, not sure what 2 is for, and 3 is for the earpiece for when making calls. I had a difficult time at first putting ribbon 3 back in. it didnt want to slide into circuit board on iphone. I then found I had to lift the white clip where it slides into and then it went right in. but even after doing this the speaker for the ear piece when holding up to my head doesnt work. I then bought a new screen and speaker thinking maybe I damaged the ribbon 3 on original one when trying to replace it. But this one is doing same thing. Any suggestions of what Im missing or doing wrong as to why I cant hear anything when making calls. Speaker phone works fine so can make calls that way. everything else works fine too. just not speaker when holding up to head. also I noticed a 4th black ribbon that seems to just lay in there. doesnt hook up to anything. Is that supposed to be placed in there a certain way? Any suggestions would be great. Thanks!