I know this is old but having the same issue with my P3S signal loss at 800 feet and loss 250 directly above tired everything phone is on airplane mode but I shut my phone GPS off completely fixed the problem instantly maybe worth a shot for anyone saying this over a year later

I realize this is an ol d post but in having this same problem with my p3s. I have updated firmware but no help. Antenna does not appear damaged. Any ideas?