Hi Just removed the screen on the iPad 2 CDMA version. All buttons worked ok, prior to screen removal. Once screen removed buttons stopped working. Inspected flex and looked ok, but bought a replacement anyway. Fitted new part and still no buttons function (Vol/Mute/Sleep). I have replaced a few iPad screens and am stumped with this. Could I have damaged the Audio Board at all with the heat? I have restored the pad and still nothing off the buttons at all. Does anyone have any advice, ways of testing the board is ok? Thanks in advance.