Hi guys. Have a very annoying problem - took firmware a while ago, seemed to install correctly etc. Phantom doesn't have anywhere near enough power to take off now. Drone was working fine before and have not had it apart or changed anything since it last worked as it should, the only change was the firmware update. After the update I did not test it, it sat for a couple weeks even a month maybe, when i went to use it the problem was apparent. There is a yellow light as you will see in the video when the props are running now, I am baffled as it just has no power. I have taken other updates since and still the same issue, not sure if I have a buggered part inside or what is going on. Any help would be appreciated. Tried the Naza assistant today and that doesnt seem to be able to see the drone when connected so I am suspecting Naza could be the issue. DJI tech was pretty unhelpful. As I said it worked perfectly before firmware but cant remember version taken, it was about 3 updates ago or more but have updated to latest just today. Running mini iOSD, fatshark 250mw FPV and stock everything else.