
Replace the sim card and check it again. If all these tips can not work then dis assemble the nokia asha 203.Find out if there is carbon or water damages on the mother board. Clean the whole nokia asha 203 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 203.
Check these path with meter and if any of them is missing apply jumpers as given in repairing diagram of nokia asha 203. This can be use for nokia asha 203 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.
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