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 voltage readings in these components, check and replace the corresponding
Voltage regulator chip.
5320 No network problem solution 2- RF regulated supply voltages
1)Rework or replace the
Power amplifier PA IC,
2) Replace the
Voltage controlled crystal clock oscillator
3) Rework the RF IC or replace if necessary
Hope this helps solved to fix or repair a
damaged Nokia 5320 No network problem issues.
