I'm having a problem with my phantom, where it no longer seems to get GPS lock. It was working okay this weekend, but not always getting a lock quickly. I flashed my firmware to 3.12, and now I can't seem to get any lock whatsoever; nothing but two greens, then three reds, no matter what I do. I tried the IMU calibration in Naza-M, and the compass calibration with the GPS/ATTI switch, but neither seemed to do anything. I opened the case, and took a look at the connection from the GPS module to the NAZA controller, but everything seemed to be connected firmly. Could this be related to the firmware update, or is it most likely just a failing GPS unit? Is there any way to do diagnostics on the GPS unit? I was surprised to see that there didn't seem to be any way to use the Naza-M software to see the number of satellites acquired, signal strength, etc. Thanks in advance for any ideas.