At the time the phone vibrates the tray on which IMEI No. is provided also vibrates and produces a buzzing sound.
Buzzing sound goes off when we press the glass near the ear piece a little.
Please let me know whether it is a manufacturing defect and how can it be resolved or the handset is to be replaced.
The device is awesome and working fine apart from this issue. This sound clearly indicates that something is loose inside and it is vibrating with the phone's vibrator.
Are you referring to Lumia 900 or 920 here?
Symbian specialist until 31/01/2013 with interests in Maemo & MeeGo but an aversion to Windows!