my samsung s3 does not have any service and does not have an imei number recognized in the settings>about phone>status. i have also tried calling *#06# to see if it can recognize the IMEI but it comes up with Null / Null. carrier is not found but the sim card works in other phones and the phone is rooted. im on version 4.1.2 due to the fact that i live in Adelaide and optus (my provider) has not yet allowed owners of a samsung s3 gt-i9305 to update to kitkat. How do i get my phone to recognize its IMEI number and allow the sim card to work so it can get service???????