OK updated Bios and redid ATK and filter and still no lights, taking apart will void Warrenty (right?) so Should I try and check the connections or RMA it? Anyone got any good RMA stories? How long ect... Is it likely to be something on the MB or KB is broke? Have seen a lot of backlight post but always seem to be driver related. Hate to lose Laptop for a few weeks..

Most likely this is the reason you got as a clearance. Repair station in Calif is a toss up. I've had 2 RMA first on because my right speaker did not work. Turn around time was on 6 working days. They did not fix the right speaker. 2nd RMA major hard ware problems and right speaker turnaround was a couple of weeks, MB, keyboard, touch pad and right speaker were all change out. This time everything was fixed no further damages were done to my NB. So you have a choice fix it yourself or send in to a repair station.

Dreamonic told you that it is probably the keyboard light connector not connected, He's pretty switched on about these NB. The videos dissembling these notebooks looks pretty easy if you feel competent to take it down that far carefully no one might know you took it apart. Otherwise send it in. The warranty is not something to give up easily unless your willing to make major repairs youself