My B&M Luxos (old model with separate USB wire) suddenly stopped working today after 12 months of commuting. When I came out this evening to ride home it worked normally for a couple of miles, flickered for a couple of miles and didn't work at all for a mile or so. The rear light, also powered by the dynamo is still working normally so it isn't the dynamo or the wiring.
I have emailed the distributor but, assuming that this is some sort of loose connection has it happened to anybody else and is curable by bodging or is it a return to sender type job?