Nokia C2-08, C2-06, C2-03 Ringer Problem Repairing Solutions are available in the following article. Also you will find Nokia C2-08, C2-06, C2-03 Ringer Ways and Buzzer Jumpers information in the diagrams further in this post.
In Nokia C2-08, C2-06, C2-03 Ringer Problem or
Buzzer Problem can occur because of the faulty Ringer or it’s bad
connection to the Cell Phone’s Motherboard. Bad connections can happen
for many reasons like if it’s dropped or got wet, bad connection may
also happen because of Carbon, Rust or even Dirt. So first of all you
should clean Nokia C2-08, C2-06, C2-03 Ringer Ways, Buzzer and
Motherboard of the Mobile Phone. You Can Use any cleaning liquid for
this purpose like CTC or any other you prefer. If you are certain that
the bad connection is not the reason for your Mobile Phone’s fault, then
you can replace the Ringer or Buzzer with a new one.