Blackberry 9900 insert sim card

Blackberry 9900 insert sim problem

step1: check the track 

step2: if need to change ic

step3: remove sim ic and make jumper given below in second image...

The solution given above can be used in following cases:
Blackberry 9900 insert sim
Blackberry 9900 insert sim problem
Blackberry 9900 insert sim solution
Blackberry 9900 insert sim jumper solution