So in first step you can replace ringer and if replacement of ringer will not work you can check all these tracks that are given in above diagram.
So if any of them is missing you can apply that jumpers and if any parts out of them are broken or damage you can replace them.
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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