by Fatboyfun » Tue Jun 11, 2013 6:17 pm
Are you sure the baudrate is correct?
Also you really need to be outside, primo needs to download the satellite position data before it can get a lock, this is transmitted like a song playing over and over on the radio, If you miss a bit of it due to low GPS signal you have to wait for it to be played again, this is why you should be outside in the open for the initial lock.
Once the data is stored, it is refreshed during normal use.