My Typhoon H went into a (fresh water) river recently...half of it was submerged. I was able to retrieve it. I took it apart to clean the motherboard and clean the rotors as well as I can. Sure enough, the thing turned on, and the camera works no problem. However, here is what does NOT work: (4) rotors do not turn on; (2) of them do, funny enough it was 2 that were submerged No GPS; it's not reading any satellites, attempted calibration a few times but that part was half submerged so not surprised. My question is, is it worth it to contact Yuneec & send it back to repairs, or attempt to replace the (4) rotor arms & get a new GPS top? My concern is the parts are not working because of water damage to the main control board, not the parts themselves, though I'm not advanced enough in repairs to attempt this. I've messed around plenty with cheap microdrones but this piece of equipment is too important to me to eff up. Any advice on my options before approaching Yuneec to send in for repairs? My drone is out of warranty as it's over a year old and I never purchased extended warranty.