Sony Xperia Z Insert Sim Solution Jumper Problem Ways xperia z sim problem in sony xperia z sim box connecter pin broken damage and due to water damages.
in case of insert sim problem mobile can not call sim and may it shows insert sim in it.in xperia z condition you can only see sim signe in mobile but it will call sim.
First step is open mobile and check sony xperia z sim box connecter points on borad if there is a good value in it then change sim box with new one.
Problem will be solve. if only connecter points do not show value then chek all sim ic connecter track and parts that are used in sim box function in xperia z parts and track are given
in bellow diagram check all these parts and components and if necesory resold or change them.this will help you in xperia z sim card Solution Jumper Problem