Chosen Solution
does anyone know where tiny rubber block goes . its a black square and about 1/8 in by 1/8 in ( its not the cable bumper on top of circuit board) I had also removed metal circuit board shields for cleaning.
It is just a spacer that goes at the top of the logic board on the left side near the rear camera and LCD & Digitizer flex cables. It helps hold the logic board in the phone nice and tight. Your phone will be fine without it. There is not need to put it back unless you really want to.
Rubber Gromet left over after strip down and rebuild http://img263.imageshack.us/img263/8572/…
