Guys I know it might be frustrating but hey... it's the last boss after all, so you should just make more flashpoint get better gear (assuming you can just leave if you fail the quest) than just retry it... because I haven't fought the last boss yet but I better hope he's still a challenge and not a f****** P**** because you can't beat him XD So gear up a lot with T7, yourself buy some medpac adn get ready to save the galaxy