if you're going to browse the sony ericsson forum here, you will find that no one really gives unlock code for phones here. maybe ericsson phones are not that popular compared to nokia so code calculator are not available. if you really need to unlock your phone you have to pay for it. 1. buy an unlock code from ebay. someone has successfully unlock his phone already by buying the code in ebay. http://forums.afterdawn.com/thread_view.cfm/3/245322 2. i heard totalmultiserver can unlock many kinds of mobile phones not just ericsson phone. the software is free but you need to buy a credit to use it. i think you also need a cable for your phone. check http://www.totalmultiserver.com/ 3. or just bring it to a prefessional who has all the required tools to unlock your phone.