My one month old P3 shows USB disconnected and disconnected on top. Tried another cables and phones,same result.Switched off and on several times, no connection. BUT the left-hand wheel did tilt the camera up and down,but left bottom assigned key doesn't work.Pls help.

Your R/C still works in these situations - so don't panic! You have full control of the aircraft....

What device are you using?
What did you switch off and on several times?

Hints:
1. Turn off VPS
2. In the lightbridge settings, select custom channel and try a fixed channel (I use 20).

If this does not work, land the aircraft and reset everything.

I afraid this is a bug in the Android app, in case you have the remote Modell GL300B

If i am right, please make Screen shot's and mail this to app@dji.com

What do you mean by "in case" ? Is it "unless", or "unless you do not" ?

same issue here, i am using ipad min 2. had it working all day yesterday then BAM! WTF? Any luck with dji?