Last night I was flying my standard  at about 500 metres out when I got disconnected on my iPhone 6 Plus, first time in my 120 flights, after I calmed down I remembers to toggle the left trigger twice to initiate Rth. After a couple minutes it was over top of me and I could breathe again,should I reinstall the app? There was an update for my phone that I didn't do until today, could that be the cause? Any info would be appreciated

Possibly you ran into interference in that area.
Fly in a different area to see if it's the same or not.
Also, make sure you have proper antenna orientation.
This video may help.

Hi Ken, flown there before with no issues, antenna was properly pointed as well,I never regained signal even after I had it on the ground, I've read a lot of threads saying to delete app and clear cache, seems like it's an iPhone 6 issue and iPad as well, what are your thoughts on that?