Quote:
Originally Posted by oliverhart77
thank you. I was reading about that. If you think about it, the end result of unlocking the iphone 3G would BE to enable the usage of it on other 3G GSM networks. Aside from the dev team just wanting a good challenge, the main reason is compatibility.
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sorry, but the person you quoted is misinformed. the iphone 3g's chipset has no support for the 1700MHz UMTS band T-Mobile USA is using. it's a tri-band UMTS chip... there is no hidden or locked 4th band.
cracking the baseband allows for more than just unlocking the SIM restriction and is a worthy endeavour, even if just to use prepaid SIMs while traveling outside of the country.
Quote:
Originally Posted by cheekydevil1234
This may sound stupid but i don't get it??? My Iphone 3g is unlocked, i can use it on any network in the world. All the phone company did was send me an sms message saying unlocked please plug into Itunes. Can't that be looked at in any way? I know it is harder than that but what is it that makes it so hard when an sms does the job? 
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it wasnt the SMS that unlocked it. what happens in that process is that the IMEI is sent to Apple with a request for permanent SIM unlock. Apple then unlocks that IMEI in their database, and when you connect it to iTunes at that point, the phone is unlocked remotely.
countries in the EU like Germany and France have laws requiring that all devices sold MUST be unlockable upon subscriber request for interoperability across borders while traveling within the EU.