gps-speedsurfing
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1Oisin van Gelderen75,13
Lost 20 minutes of tracks somewhere, so thats a pity :(
Good day though - I was on a borrowed board that was too big for me, as I didn't have my JP 45.  Still good enough for the day I guess. 
Followed it up with Logo high down the line on my quad, so that was a nice end to the day :)

Hello Osin, Dit you try to read out your internal memory of the GT-31? Maybe you can still recover it from that? You can save your internal memory to card in Data Logger and then go to save to card.

Greatings Marco

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