Aircraft Connected / Aircracft Disconnected ???

I just crashed my Phantom 3 Standard. I need a new ribbon cable for the gimbal and I have a spare OEM here so that's ok. However, when I turn everything on (RC, Wifi, App and bird), it connects for about 12 seconds, then disconnects for about 7 seconds and repeats that cycle continuously. And, it also make a faint electronic-type beeping sound for about 10 seconds. it stops but if I move the drone, the beeps start up again. I can start the props and even fly the drone but I can't figure out the connect/disconnect issue or what internal part controls that functionality. the drone clipped the top of a small tree (10-12') and landed upside down in my driveway.

Any help diagnosing this issue would be very much appreciated. And if anyone is confident in their diagnosis, I'm curious if it's a repair I can make myself.

Thanks very much!