I have had this model from New, I am retired and only use twice a year for holidays only. The last time I used it sat nav was flat. I purchased a new battery and asked a young neighbour to install it. He told me a problem had occurred and the only way it will operate properly is to have it constantly charged. I expect it tobe the USB mount.I haven't thetime or money to send it back to Tom-tom. So i antipate someone with experience can sort it out. Screen and sound and picture has always been perfect. unfortunately the your lad left slight score mark on the surrounds.
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