tried to connect the uBlox neo 6m-0-001 with compass to APM 3.1 mini to the GPS slot (compass to SCL/SDA, GPS to GND/5V/RX/TX).
The power LED on the GPS board in on, compass configured and works fine.
I cannot get the GPS working, getting interchangeably the messages No GPS and No FIX in Mission Planner.
HDOP = zero, sat count = zero.
Any idea why the GPS does not want to work?
I would appreciate any help as the drone is almost ready and the GPS problem is the only last issue I am facing,