I was having no problems up to Aug 20th with anything. I believe my unit did an update before Aug 22nd on the second battery, but never flew it until the 22nd. Anyways now I can get as little as 40' away and I get week remote signal (Transmitter) If I keep going and it will go into RTH. The FPV and incoming data works, remote does start beeping at me. I can get control back flipping S1 switch down, then up. I have flown this 5 times around my house with no problems. Since the 22nd I have tried 9 times. I have relinked Phantom and Remote and got to scan for best frequency. Not sure if they are the same thing but I tried both with link success. Of coarse I have tried all batts charged. I been trying to find how to calibrate IMU. But the Pro and Adv remotes seem to have two usb connections mine has only the small one that doesn't hook to my tablet, what I am missing.