Re the "Clean install" as above, I purchased the clean install kit , (which turned up OK) and then followed the video instructions no problem, but upon splitting the remote controller and then carefully removed the 2 roller switches, I discovered that BOTH the plastic locating pillars in the bottom half of the remote controller were broken off and when I removed the original antenna, I discovered that one of the plastic collars was broken !!!!!!!.
I could have cracked the aerial collar ( but I'm pretty certain that I didn't, bearing in mind the care I took in removing the aerials) but the locating pillars for the switches were definitely broken when I split the remote, only held in place by the screws through them, pretty lousy quality control I would say on Dji's part.
I can't imagine Dji replacing the case if it was brought to their attention.
It also makes me wonder if the same person was the reason for cracks appearing in case around the rotor engine mounting points in some Phantoms, it only takes some ham fisted idiot with a air wrench "nipping" screws up on the assembly line to start cracks and break things off. Not good on an expensive piece of kit.
Aside from that the Phantom is up and running although I haven't had the chance yet to carry out any comparisons with signal improvement everything is working as before.
I think that the extended aerial connections could do with "flat washers" both inside and out where they go through the case and I may remedy this later if the connections start to turn in the case, but aside from that everything is OK and I would thoroughly recommend the upgrade.
