I've got a v1.1.1 Phantom. Everything seems to work just fine with it other than it won't acquire any GPS satellites. The red LED just keeps blinking three times. I took the GPS module from another v1.1.1 and plugged it into this Phantom. It locked the GPS satellites without any problems. So it looks like the issue is with the GPS module on the original Phantom. My question is whether there's anything I should try before purchasing a new GPS module.