While you wait for answers, we may have found some information which could help you.
Click here for Button Unable Coursemy sony NW-A1000 just died?
wony turn on sony walkman nwz-e436f?
Sony NW A3000 - not 'seen' by software on PC?
my desktop pc will not recognise my sony walkman?
how to repair my sony mp3 player?
Whats wrong with my Sony NW-A3000 MP3 player??