Why does my 4 month old z982 do nothing?

Hey I have replaced battery and charger port/headphone board in my z982 and nothing.. I know theses parts are the right one after trial and error. I get no light up with just charge wire.. Have tried different charge wire and source.. Next going to order flex cable from port to main board any sugesdtions?? Please help.. i screwed up on first charge port and put one in. I ordered one that didn't have I.C. on it and it lit up then nothing there after that did I burn something else up?? Help I love my blade Z Max but it's gotta work !