Good day to all on the thread I am new to posting and also I hail from Africa and live on the South Coast in a province called Kwa -Zulu Natal, in a town called Port Shepstone, where I have been a school teacher at the local high school for some 20 years now. (Thats my intro just so you know where I am from)

I have a great interest in GSM and have 4 different Garmin and one Lowrance unit. I use them for navigation in Lesotho and Mozambique and then also use Bluechart for fishing.

I have the Lowrance Elite 5X, Garmin 200W, 2300W, 60Csx, and 78cs.
I have problems with unlocking maps I load legal copies of maps from Mapsource to my unit but when turning on it gives the message "cant unlock maps"