Phantom 3 advanced, iPhone 6plus, all firmware updated, all latest versions of ios and pilot app. At a location where I've flown successfully before under the same conditions, shortly after take-off, my status bar turns red and reads "no signal". During this state, I lose the on-screen image yet maintain full control of the aircraft. This would reoccur even after landing and shutting down and restarting. Start up RC first, then Aircraft, then Pilot App. When I swapped out the micro sd card, from SanDisk Ultra PLUS 32GB to Lexar 633x 16GB, the problem went away. One difference: the SanDisk card had the .bin file on it from the recent firmware update and the Lexar didn't. With the Lexar (the one shipped with the aircraft) I regained full video control. After I deleted the .bin file from the SanDisk, the controller and aircraft was fully functional. I was under the impression that the bin file should remain on the disk. Perhaps there was another reason why this issue was corrected. I would love to hear from others in the forum about these issues.