nokia 100 insert sim solution jumper
As most of mobile phones have six point of sim card. In all sim cards sim jack use five prints that are used in sim function. As in given bellow diagram you can see different color lines.
These lines are identifying sim point of nokia 100.
Check all these points and track with meter and if any of these prints are missing apply jumpers to solve nokia 100 insert sim solution. Once you have check and apply these sim point jumpers insert sim problem of nokia 100 will be solve easily.