David if you ever stumble on any such onboard GPS data storage hack I would be enormously grateful. to hear about it in this forum. I just launched my newly acquired Mini 3 on a short test flight and was underwhelmed by the range at which the signal began to break up and RTH kicked in. This occurred within one mile, due to the flat forested terrain where I live.
In comparison, my Mavic 1 Pro and Mavic 2 Pro routinely fly Litchi waypoint missions that are 7 miles long round trip, most of which are covered far beyond the signal range of its RC controller. The whole reason I bought this Mini 3 was due to the phenomenal flight time of 45 minutes that is attainable with the Plus batteries, of which I bought two in the hopes that Litchi would be allowed to work its magic with the new Mini 3 SDK just released.
If that capability to store GPS data onboard never materializes for the Mini 3 either via Litchi or with DJI Fly as is the case with the Mavic 3, it is not likely that this new toy will get much use in the long run, which would be a shame, considering how much I spent on the drone and those two Plus batteries priced at nearly $100 a pop. I’ll stay tuned to see how things pan out over the next few months while keeping my fingers crossed.