My mum sent me her phone - a sony xperia miro (only a few months old) Received today but it doesn't work at all...when it's on charge there is no sign of any life at all. When I plugged it in to the computer it came up with a message saying 'no driver detected'. I installed PC companion, at first it said the phone was connected, and that there was a new version of PC companion available and to download it so I did. Now it's not even showing as connected on Pc companion anymore. She told me she did a factory reset.