I bought my Phantom 3 Advanced in 2016 and eveything was fine using my Samsung Tab 4 untlil DJI Go needed to be updated on my controller and all connection with the app lost. Latestet firmware P3s_FW_V01.11.002 and app V3.1.34 was installed but Phantom 3 Advanced in app wouldn't connect (only the Inspire 1 would). I also used my Samsung S8+ but taht was tje same. If I remember rightly DJI wouldn't admit to a bug and only suggested replacing the USB cable. I've only been able to fly without the app by downgrading to the DJI Go app V 02.08 and both the controller and aircraft to P3S_FW_V01.02.007. The gimbal and camera works (video and stills in Jpeg only), but I now want to be able to use it professionally using the app for full control. Could I buy a used P3A and contrloller and upgrade the aircraft from the conroller using the version of the app used by the seller? Or can any help me get my aircraft and controller working?