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Here's the solution that may possibly help fix and repair nokia 5320 xpressmusic No network signal problem issues. Before you may proceed to use this solution, ensure that the device firmware is okay, restored and already flashed and or updated. This solution may only works if the device suffered a water damaged or heavily dropped by the user. Repair Hints: Check the battery voltage across to the components highlighted on the solution below. These are filter coils and you need to have a voltage reading in this components about 3.7 volts ., It is connected directly to the battery positive terminal. Replaced filter coils if found damaged, apply a jumper wire if found the supply voltage line is open or cut. 5320 No network problem solution 1- RF Supply Voltage Check the  voltages in these components highlighted in  below solution, these are the output voltages from the voltage regulator chips that supplies to the RF IC and RF Power Amplifier chip . If there is no volta...

Here's a solution for Nokia 5320 Xpressmusic mic, microphone or mouthpiece problem issues like no voice sounds can be heard over the receivers handsets. This solution simply shows the location of the particular components that need to check, trace or replace to solve microphone problem related issues on Nokia 5320. Nokia 5320 Microphone, Mic or mouthpiece failure solution Repair hints: 1) Check or replace the microphone module 2) Ensure that the mic's terminals or pads is free from dirt or oxidation 3) Rework and trace the line paths from the audio IC (AVILMA).