Check the warranty status of your phone.
Go to a Nokia Care Point for face-to-face support
Enter *#0000# on your phone’s keypad. The display shows your phone’s model and product code.
On older phones, these numbers are printed on a white label in the battery compartment, underneath the battery.
Select Menu > Settings > Phone > Notification lights > Notification light > Events Notified > New messages.
The notification light is around the inside of the navikey for messages (not emails) and calls.