in case of insert sim problem in Samsung E2130 it will show insert sim, sim not valid, and may not show signal.to solve Samsung E2130 Insert Sim IC Solution Jumper Problem Ways we have to do a few simple steps as given in this post.in first step replace you sim and try it.scratch sim points in mobile slightly then try.
after dis assembly check all sim jack points at mother board with meter.check all these parts and track that are given in above diagram and if any of them is missing apply jumpers to make that path in good condition.if any of the components is missing replace it with new.
you can change sim ic also and may can apply jumpers after removing ic from mother board.there are some posts also to describe that how to make jumpers in sim ic to solve insert sim problem.
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Samsung E2130 Insert Sim IC Solution Jumper Problem Ways Sim Not Working Sim Not Valid
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