blackberr "Error id 30702"
This i believe is common across. Happened to me on my BB9900 and BB 9360.
i had tried to swap the SIM's and the ID got Locked out at the server level.
Follow the steps below.
1. go to us.blackberry.com/id/
reset the password for the blackberry id.
2. go to the BB Application World and select "Payment Option" after you have selected that, it will display you BBID and ask you to enter the blackberry id password.
Enter the new password and it should unlock your ID.
cross check by trying to download any application.