Hi guys,
A friend of mine ask me to upgrade her iphone 3g 2.2.1.
She does not know the origin country of the unit. She bought it shah alam with variety of apps (inc cydia) installed already.
How can we tell whether the unit is officially unlock?
Based on my research, the unit part number is from Australia (Telstra, Optus, Vodafone) or NZ (Vodafone).Is
If I was not mistaken, au and nz units are officially unlocked, was it?

I think I found the answer... iphone from AU are all locked to carrier. NZ is not, however.