If you have Nokia 110 ringer problem. It will not rung the bells. we will not be able to hear a loud speaker call. Ringer problem of can be cause of burn parts or may can be due to water damages or rust.
In above diagram blue and red color lines are given so that you can find out components that are used in ringer function. Check these parts with electronics meter and apply jumpers to solve ringer problem in nokia 110 with jumpers.