Decided to move up from my phantom standard and purchased a mavic. Been all downhill from there. Noticed the mavic was not listed on the dji app I had on my phone. Went to download latest dji app and got a "Not compatible with this device." My phone is a samsung s7 active running 7.0. So, I decided to purchase the litchi software since this seemed to be a better software for android users. Get mavic updated and controller with latest firmware, everything charged up and ready to fly. Everything powers up, can see the camera on phone. Camera moves and works. Mavic refuses to take off. Cant get the propellers to move at all. Tried uto take off and get an "unknown error" message. Connected litchi to my phantom and it took off, flipped over and crashed. Probably my fault because I did not calibrate or anything. Anyone have any ideas? DJI support has been worthless. They have suggested I buy a new phone to start.