yeah, ironic huh.
This is one of the most important plugs on the quad (well they all are really) and this is the worst fitting plug on the quad.
I have cut the ends off of two wire ties and shoved them down between the plug and socket trying to get a better fit. It didn't work, they vibrated out. Now I don't wedge anything in there but what I have found is this: when you are putting the top shell back on and you plug in the gps cable, as you are lowering the top shell down, make sure to bend the gps cable away from the outside of the quad. Bend it towards the inside. It will hold itself in that way. I don't have gps issues any more, and as an added bonus my camera comes right on every time now. I was fighting my camera, it would only come on half the time. I would re-boot everything then it would work. Now it's first time every time. I have no idea what this gps cable has to do with the camera, but this has been my experience.
try it, it might help
Yes, and it's a piss poor design. My suggestion is to do what I did and adhere a small piece of Velcro (loop side) onto one side of that male GPS plug so when you slip it in there is a lot of friction holding it in place and keeping it from popping off during flight.
Here is a thread that started last year and is ~300 posts long where the connector, fix, new plug and all aspects of loss of GPS are tested, documented etc.... It is a long one - get the popcorn going first
Squeal, don't let all the hype about the GPS plug confuse you. It's just added insurance by improving on the connection to insure it stays tight. You'll read all type of info on GPS mods to improve reception , improve the plug. Antenna modes to get more range. Modes to the camera to protect the gimbal, motor wiring mods for V3 and ESC mods for older ESC'S. Take them with grain of salt. I have two Phantoms, one I have done every mod to and one that is out of the box and no changes other than updates and calibrations. Both fly perfectly only difference is the antenna mods give me greater distance in my environment.