Blackburn Flea lights. Help needed

Harry B

I've got a blackburn flea front light which I have just charged for the second time. I can't get it to stop flashing. I have tried to disable the demo mode (if this is what is happening) but it keeps giving off a long bright flash. Any ideas before I just stamp on it?

PS I need to get it sorted before I cycle home this evening

1892

Does the switch move freely, could it be stuck?

fossyant

Water ingress ? - stick on a radiator