Nokia E5 Headset Problem Jumper Ways 
The solution above shows the connection of the headset AV jack connector terminal pads which is useful in high level troubleshooting procedures. It also includes the filter ICs connection for jumper remedies.
Hints in troubleshooting the headset problem on Nokia E5:
1. Check, clean or replace the headset AV jack connector.
2. Clean the AV jack connector terminal contact pads.
3. Trace the each particular connection like the microphone or the earpiece.
4. Check, replace the connected components on a particular connections.