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If nokia asha 202 drop call or do not make voice calls it can be fault of signals and not network access. Check if your mobile phone is in offline mode airo plan mode. And also check your mobile phone’s setting about network selection it is automatic or manual.
nokia c1-01 light problem solution jumpers Tested 100%

Replace the sim card and cehck it again. If all these tips can not work then dis assemble the nokia asha 202.Find out if there is carbon or water damages on the mother board. Clean the whole nokia asha 202 mother board and apply heat to make it dry with hot air.
Do not apply much heat it can damage the mother board or can burn components.In above diagram red line is networking track. All these components are used in signal function of nokia asha 202.
Check these path with meter and if any of them is missing apply jumpers as given in repairing diagram of nokia asha 202. This can be use for nokia asha 202 signal not network solution.
for more detail and new tips and tricks about cellphone service problem keep visiting this page we will update cellphone service diagrams timely with new cellphone diagrams.some related post are also given bellow you can read them also for more information about cellphone.

Heres 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.



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.



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.