hi friends some times 1110,1600,2310,1112, we face the insert sim fault but mobile become contact service problem how can avoid this problem ? i will share my expereance here.
i will give you one advice from my expereance,
when you remove the sim ic, please dont apply any type of
creams or liquids in board, then simply remove the sim ic
and give jumper solution is the best (or) fix new sim ic without flex
" avoid contact service "
and here i post some solution for insert sim