Originally Posted by JeeBee
I've switched a couple days ago from a Pearl to a Curve, Vodafone send a message that the device succesfully registered on the network. The only thing I had to do is on the Vodafone website was changing my pin and IMEI. I don’t know if it’s the same with your provider.
Same with all providers. If you stay with the same carrier, but change the device in BIS, the PIN is released.
The OP has a different issue. He/she bought it on ebay. The PIN/IMEI os registered with another carrier in a different country. Much different.