[Carrier Sim lock] is it a hardware or software thing ?
apparently some countries are selling otb iphone 3g that are not locked to any specific networks.... (honk kong and italy) for example.
My question is,is this a hardware difference between the sim locked phones and the non-sim locked phones? or is it a software thing (itunes checks the imei and and determines this phone should be de-simed)?
if it is software based... should that mean that by looking into a "unlocked" phone, someone would be able to figure out what needs to be done to unlock all phones?