I have a no signal issue after updating to 1.6.4. I will have signal right up until takeoff then lose it sometime in the first 100 feet. I can run it on the kitchen table (no props of course) full vertical and forward and not lose my video but as soon as I try to fly I lose the signal. I still have telemetry and can control the drone but no video signal and after a couple minutes of that the app will close. I still have link with rc and can land fine. This is on a proscan 10.1 inch tablet. p3p. I have uninstalled the app and reinstalled, turned off every thing I could. Litchi is doing the same thing also. I had no problems with the app crashes or loss of signal (unless I got a long ways off ) prior to the update. I have tried downgrading, relinking the phantom and controller, ran thru all the android fixes I found and still have the same problem