After many hours of trying to fix this thing and countless factory resets with absolutely no luck, there is nothing in the menu to change com port/baud rates or anything, I went back through all the settings the main GPS was enabled and WAAS/EGNOS enabled, so I decided to disable WAAS/EGNOS and the bloody thing worked straight away and found all satellites, so am really happy now as its been a good unit for me over the years, thanks to all for your valued help, greatly appreciated.