We purchased this Intel Aero Drone to do trajectory tracking study.
So we changed the OS to Ubuntu 16, and when we flied it in the offboard mode with my own developed code, the drone flied to the roof, crashed and broke the GPS rod, and I purchased a new typhoon GPS which is the same GPS for the Intel Aero drone. After I installed the GPS on the drone and powered the droen on, the Ubuntu system is running normally, but we cannot connect to the drone with our laptop through the drone wifi. And when we try to run the same offboard mode code, it showed that I cannot connect to the flight controller. And I tried the official demo code which is to arm the drone for 5seconds, it didn't work. And everything seems to be normal from the apperances and lights. So should we send back the drone to fix the problem? What might be the solution for this problem?