Đây bạn: http://www.blackberry.com/btsc/KB25553

Nguyên nhân: BlackBerry chỉ cho phép bạn thay đổi mỗi năm 15 thiết bị




Cause

BlackBerry World will only allow up to 15 device changes within one year.

Resolution

If the maximum number of device changes has been reached in error, contact the service provider from which the smartphone was purchased for assistance.