Free SOlution 4 You

If Nokia 111 have insert sim problem, invalid sim problem, sim not working in Nokia 111. All these sim problems of Nokia 111 can be solve with these few steps that are given in this post.

Keep in mind after dis assembly of Nokia 111 look at the whole mother board for carbon water damages and rust. Make it clean with electronics cleaner and apply heat so that it can be dry smoothly. Do not apply much heat because much heat can harm your skin and may can damage the mother board.
Look at the diagram above that is given to repair Nokia 111 insert sim problem in this post.In this diagram you can see some different color lines these lines are identifying different paths and traks that are used in insert sim function.