What RyuKazuha said was true. What I did, I summoned Khem for droid kills quest up to the point where you need to open the Temple door. While at the door summon Talos so he start the quest. I have to admit it was not easy for me at first try cause i made a mistake of Whirlwind the last droid so I can heal myself, but never realized that the doid healed too. I run out force and health, died and run back in. Second attempt went easy. I ccd the hell out of that droid, knock him back then I used the slow ability (sorry forget the name). i think that trick worked for me. :)