trying to troubleshoot my problem and am getting no where...dji f450 w/naza and gps...everything dji stock...tried to plug in my 3s lipo got a small spark...now the naza doesn't go thru its sequence..no sound and the motors won't arm...also led light strips on arms don't light up(soldered on)..rx ar8000 is bound and led is lit..i am getting a flashing green light in gps mode,yellow in atti and no light in manual..everything in software assistant looks correct..tried reloading firmware and still the same problem.....did something possibly short out?? can i rule out the naza unit? maybe i should try putting on a new battery connector...help is appreciated....PLEASE...Prior to this everything was great..very stable..RTH worked flawlessly..gps mode was rock solid ....no crashes....