Replacing ribbon #3 is the most difficult procedure. Use scotch tape to hold ribbon #1 and #2 out of the way while working with #3. Slightly straighten ribbon #3 and then thread it into the receptacle by moving the display toward the dock connector end of the phone. When the ribbon enters the receptacle use the broad part of the spudger to slide the ribbon contacts fully into the connector. Working from the top end of the phone, slip the spudger beneath the display to seat the ribbon, gently pressing the ribbon toward the dock connector end. Then snap the plastic tab on the connector shut.