Hi have a tt 520 go running navcore 8.302 on it works fine would like to use map 870 3406 on it or do i have to update navcore 9 to work thanks

kery wrote:Hi have a tt 520 go running navcore 8.302 on it works fine would like to use map 870 3406 on it or do i have to update navcore 9 to work thanks

The current navcore for your 520 is 8.351. 870 maps will run with either of these 2 navcores.

Ok thanks for that