I started to update my Tom Tom 25 as advised and it just went blank and would not start. I forced it to start but it does not stay on and when it is on I just get a picture of a Tom Tom screen with arrows going around it. It then turns off again. My Drive connect is still saying I need to update but when I connect my device it does not recognise it. Any help please? Everything was ok until I did what I was told by Tom Tom!