My phantom three professional will not register miles per hour going forward it only works going up or coming down has anyone else had this problem thank you

Never heard of that? Does it do it every time you power it up?
And did it do it from new or has it just started?
Ca you save your flight records and delete and reinstall the app and then see if it still does it?

It work fine, it just started doing it. I haven't tried reinstalling the app

hyperp8nt Posted at 2016-3-11 02:34
It work fine, it just started doing it. I haven't tried reinstalling the app

Save your flight logs and delete/reinstall the app.