Hey guys, my friend is a new iPhone user.

Apparently he bought this Australia set which is legally unlocked (not yellowsn0wed) and then when he was trying to update it from 2.2 to 2.2.1, he was dumbfounded to found his newly bought iPhone sim locked. He also tried restoring again, but it remains locked. It seems that the iPhone is no longer carrier unlocked.

I am wondering if my iPhone will face the same situation? I bought a Singapore set, and have updated before from 2.1 to 2.2 without a hitch, will it be relocked when i update to 2.2.1?

Thanks guys!