I tried this and it doesn't seem to work for me.
I use the Xcode method to change location and 5 GHz becomes available. I switch to airplane mode then restart in airplane mode and FF6 reverts back to 2.4 Ghz only.
Upload of my flights to the cloud seems a bit hit and miss on FreeFlight6 on iOS. Is anyone else experiencing this?
So I currently have one flight from today that is not synced (as indicated by the lack of green cloud icon in the image).
Mines the same. I’m experiencing the same issue as you with this power bank
20800mAh USB C Power Bank Portable... https://www.amazon.co.uk/dp/B07C1V8H5V?ref=yo_pop_ma_swf