This has been an ongoing problem - I fly the Phantom 2 for awhile, then when the batttery goes low it enters failsafe mode, flies back to its take off point and turns off. When I replace the battery and turn it back on, all I get are yellow flashing lights (Naza-M mode) and the link LED on the Phantom 2 is solid red, indicating no link to the transmitter. What's going on? I recently had it in for service - they found nothing wrong except for the gimbal which they totally replaced. That is now working fine. While in the shop though I don't think they could replicate the problem of the transmitter losing link after entering failsafe. Anyone else have this issue?