I am not even sure where to begin.
Where did you get the BlackBerry?
What carrier did it come from?
What carrier are you trying to use it on?
According to your profile, Tigo is a GSM carrier - a CDMA based 8230 will not ever work on a GSM carrier.
The majority of the world's mobile networks use a technology called GSM.
Others (primarily in North America) use CDMA.
The BlackBerrys are not interchangeable.