Nokia N78 left and right ringer, hands free speaker not working solution

Here's a solution for nokia N78 ringer and hands free speaker not working or no sounds can be heard on it. This solution shows the left and right speaker circuit components connections.

Nokia N78 Ringer and Hands Free speaker No audio sounds solution

There is an audio amplifier IC that drives and boosts the audio signals before it goes trough to the left and right speakers. The audio data  signal is filtered by filter coils and an input capacitors.