Whats your question ? Do you want to ask can Sony Ericsson k850i be unlocked to use with t-mobile ? If so, definitely yes. It can be unlocked by using unlock code . You can get it from any of the online vendors like Classicunlocking.com to unlock it . Once, you have removed carrier lock from your Sony Ericsson k850i, you can use it with any other GSM networks internationally .