This is what am talking about. I don't want to update my home point as dji go4 always ask me, I want it to always keep my initial home point but it will keep asking me to update my home point during flight
Hi toluwumi, I suspect your issue was having "Enable Dynamic Home Points" enabled, I had this occur to me as well. Also make absolutely sure you see the Green "Ready to Go (GPS)" on the top left side of the DJI Go app screen before taking off. If you have flakey GPS reception then never depend on RTH when drone if out of sight.
I do a lot of flying over inaccessible terrain at distances pushing 1-mile away and I routinely depend on RTH to get my Spark back Home safely. I use RTH as an excellent navigation tool along with actively monitoring the map and manually flying as needed. Again, ensure stable, strong GPS reception for any RTH use.
I also do a lot of Active Track flying, where the drone follows me or my Jeep and made a video that covers this RTH topic in part, specifically discussing the problems with using Dynamic Home Points in some situations you might find interesting
HERE along with a speed testing segment at the end that same video.
Bottom-line is I use the default RTH mode everytime I finish shooting and have had zero problems by following the steps below BUT note that I do not use Dynamic Home Points for the specific reasons I discuss in the Spark Forum video linked above.
Rules I follow for safer RTH operation:
-Ensure RTH altitude is set higher than any surrounding obstacles
-Confirm strong GPS signal and full Green "Ready to Go (GPS)" status in app status bar prior to take off
-At take off confirm the updated "H" Home Point ICON is properly plotted on your DJI Go Map
-Do not use Dynamic Home Points unless you have full, unfettered access to any point your drone could land along the route flown and you feel you could find it in the landscape type
-When initiating RTH after shooting immediately look at your map to confirm the Spark is moving along the line/vector shown on the map back to the Home Point ICON
-Monitor flight to Home Point with controller in hand and eyes on map/screen, manually land if needed
My Spark always lands well within a couple foot from where it took off and I feel safer letting the Spark autonomously fly back "Home" using the RTH point where the drone took off from. Again, if you have flakey, weak or inconsistent GPS reception to the Spark then RTH should not be used if you do not have sight of the drone.