Brief visit to US

[alect]

Originally Posted by inquisitor

It should find the network even automatically, which may take a bit longer upon the first use. I recently read of AT&T SIMs being tied to the phone, in which they are used for the first time, for six months - if that is true that perhaps is the reason your phone couldn't register with that certain SIM.
Lastly you should rule out that you phone has a SIM lock. But the guy should have seen and told that if that was the case.

Phone definitely doesn't have SIM lock as it was recently used in Italy and Netherlands with local SIMs.