Is the battery level sensor also part of the GPS ? In other words I'm not receiving the battery level nor any satellites after I crashed. GPS is plugged in and I've reset the IMU (basic).
You need to check all the connection on the gimbel, double check the GPS plug and on the wifi check the video data cable. Wiggle them and make sure they are tight. Check this cable on the wifi to in the shell. See if that give you the telementry data OSD then.
there are 3 sets of grey cable from phantom to gimbal. Look at the 4pin-clip-in cable. Unplug and inspect it and then reseat them firmly. This usually gets damaged/frayed after a crash.