Won’t start up XXL classic

Dem10

I have the XXL classic, always worked really well, suddenly stopped working. Won’t turn off and just shows the opening screen TomTom, everyone and then looks like it trying to download something and back to TomTom screen again. Have tried holding down the off button, just goes to a blank green screen, sounds the drum beat, and back to TomTom screen. Anyone have any suggestions please?

dhn

Do you have a backup (hopefully, manual -- not Home)?

Dem10

No I don’t have a manual unfortunately