Update instructions PLEASE for a Satnav, Navman iCN 520?

I'm looking to find out how to update my Navman iCN 520, the lead i am using is the one to my Samsung digital camera, it has the same end fitting, when i plug in to my PC, the sound comes up that its entered, but i cant find the icon to open it up, has anyone got the answer please, would be very obliging to find... show more I'm looking to find out how to update my Navman iCN 520, the lead i am using is the one to my Samsung digital camera, it has the same end fitting, when i plug in to my PC, the sound comes up that its entered, but i cant find the icon to open it up, has anyone got the answer please, would be very obliging to find the answer.
3 answers