My Tomtom 3 cardio with music screen stays blanc.
I used my watch today for about 5 hours without problems. Then I loaded the session to the internet and went to swim. During the half hour swim I got the connection icon on the screen, so I assumed the battery was low. I connected the watch to the computer when I got home, got a scrambled screen and then nothing, just a blanc screen. I left it for a while on the computer, but nothing happened. It is totally dead. Anyone with a solution?