So long story short, I crashed my drone and the GPS will not connect. The ceramic GPS antenna was cracked. I ordered and installed a new upgraded 4mm GPS antenna but I still cant connect. It could be one of a few problems: My solder gun needs flux and a new tip so it's possible the solder wasn't seating onto the connections properly, I could have heated the circuit board too much and ruined the connection or there could be another cracked solder joint I can't find or something else. I also can't calibrate the compass. It just flashed red after until I power the unit off. This could be because of the GPS though, since they connect to one another..? I plan to pick up a new soldering tip and flux after work and trying once again, but for some reason I don't think that's the issue. Anyways, are there any circuit board / drone guru's out there that could help me out?