Seem a discrepancy in the manual on RTH, page 33 states press and hold to initiate return to home, page 45 says just to tap it? What are the differences, and which should we be using? I've used the RTH in the GO app and that seems to work right, but you'll understand my hesitation. At some point (I think during the flight I mention in first post) I saw the option return to controller point, so I'm guessing there are RTH options other than those detailed in the manual? I thought I understood all 3 of them, but the controller point would add at least a 4th?
RTH button on the controller - tap once, or tap and hold to initiate a return to take off point?
Obviously there are the other RTH on out of controller range or battery at low level.
I was told of an option in the app to set a new RTH point, in one of the menus, I can't see this on mine, am I looking in the wrong place? (I honestly don't want to hit it by accident!)
First, you NEED to know where the spot is to set a new homepoint.
Actually, and in my belief unbelievably. they set it to a more difficult to get to spot. It's actually only one extra click away than before but setting a new homepoint should be very obvious and fast. In fact, I am of the opinion it should have its own burton on the controller. However, DJI, possibly for the better decided to keep their controlled simple and put all the functionality only available in the app. Personally and some here would strongly disagree with me, I'll take a switch over a screen button every day, even if that does mean a more DIY looking remote that you have to learn. You should learn anyway for example, where to change homelands and that:
In the same exact place where you turned on multiple modes, the mc (main controller?) settings.. Visually:
You can see rifght above the toggle switch for multiple flight modes are an arrow and a little guy. The arrow will set a dynamic homepoint (meaning one that is on the fly, literally. Wherever the bird is). Hitting that button will change the homepoint to wherever the bird is. To be honest with you, my original theory was this button was either accidently pressed or glitches (it's software and software glitches) and set a homepoint at the bird.
The one where the little guy is, will set a homepoint where the RC is and uses the GPS/Glonass reciever and set a new homepoint. The signal of satellites is what the bird is recieving, not the RC/tab so always be sure that the homepoint is set well. It's nice to have a loud tab (like my new iPad Pro) because all the aduible warning like "a new homepoint has been set" is much easier to head.
I really do ramble.
So yeah, your homepoint reset buttons, while they used to be on the main screen, now you have to go to MC settings. I wish it was an RC button but you can't even program one of the C1 or C2 buttons to do it. Which may be a good thing I suppose. Working knowledge on that is this is a prosumer system and they don't want accidents happening from people purposefully or by accident hitting buttons that could be catastrophic.
Also, the manual is just a pretty good Enrish but it wasn't made by an Oxford English professor so yeah, you can learn the basics but yes, you can't just tap the button. You have to press and hold it for just a second. If will make an obvious audible beep.
Equally as important to creating a homepoint is ending on as you found out, an RTH can also be fatal. It is my opinion that wifi triangulation does a poor job of one of the most important things you can do with your controller and that's setting the homepoint so if you have one that 10 meters off, that could be it landing in a lake instead of right next to you and if you see that happening, you would override the RTH by ascending or moving over or whatever but that doesn't kill the RTH which is something I personally believe you should be able to.
There is always a red X on the screen or when landing to cancel but the lesser known and much better way is by pressing the RTH button until you get that beep again. Hardware over software always IMHO.
Finally, just FYI, if it's a power issue and the bird has done an RTH because of power yet at some point determines it can't get home, it's going to land where it is and there is nothing you can do to stop it and I believe that includes turning to ATTI mode but that is only if you do something like run it down to 4% or something.