Following on from a thread I started last year (now archived)...
http://www.ukhillwalking.com/forums/t.php?n=650272
Here's what's happened since then...
1. Phoned Lyon - explained the situation - standard Myo fault - >3 years old - sorry can't help.
2. Phoned Cotswold (where I bought it many years ago) - as above - sorry can't help, try Lyon.
3. Went onto the Petzl website - sent them an e-mail explaining the situation.
4. Got an e-mail from Lyon - we're the UK distributor etc. Can you send us a photo of the headtorch and tell us the year of manufacture (little date wheel on the plastic).
5. I send photo and date (08 and arrow ->4; presumably April 2008).
6. I get another e-mail from Lyon - "It is outside of warranty but due to its good condition we will take a look as a gesture of good will." - please send it to us but you'll have to cover postage to us.
7. I send the headtorch to Lyon before xmas.
8. Today I get a Parcelforce package, new Myo.
RESULT - all I can say is THANK YOU VERY MUCH LYON EQUIPMENT - what good customer service