Sony Xperia C3 Dual Test Instructions page 24

Problem Areas: Microphone
Action:
1. If damaged – replace the 2nd Mic Mesh.
Check:
Inspect the 2nd Mic Rubber.
Action:
1. If dirty – clean it.
2. If damaged – replace the 2nd Mic Rubber.
Check:
Inspect the secondary microphone on the Main PBA.
Action:
1. If dirty – clean it.
2. Replace Main PBA.
1290-1679 Rev 3
©
Sony Mobile Communications AB – Company Internal
Troubleshooting Guide (mech)
24(58)