I'm getting pretty frustrated from the upgrades & downgrades of the P3S. I have had this range issue where it RTH on short range every time. I have seen posts on downgrading & I have used all the firmwares to test & still poor range issue. I have seen posts on Downgrading the App as that was thought to be an issue. I think I am facing sending it away to be fixed & never to be firmware upgraded again. Has any light been shed on what is going on with this issue & whether there is a real fix to the issue that has worked before it gets shipped off?!?