Iphone 'locking'

[kitersteve]

my dad broke his iphone 4 and got a new one on insurance, however he only broke the screen,
vodafone said they are sending him a new sim and phone and that the old phone will be 'locked'
i was thinking of putting a new screen in it and using it myself for work, by 'locking' do they mean its disabled from ever getting a signal, or does it void insurance if they find it to be used again?

will jailbreaking solve it if so? or is it completely no use at all? thanks guys

 

[willerz2]

Locking means it's blacklisted on multiple carriers in this case. Some may still accept it some may not even with an unlock. It's hard to get a factory/IMEI unlock on a locked device unless its a backdoor unlock which is illegal and not supported. In some situations, ultrasn0w can work and in some situations interposers like the Gevey can work.