Network unlocking I have a Sony Ericsson z550i that is network locked to Optus can you please help me unlock it to be able to use any network sim card?

Hi if you want to unlock your sony ericsson W595 mobile from virgin network lock to freely use it with optus then code is the best solution to unlock it .You can purchase code from sites like MobileUnlockSolutions.com they are rendering unlock code for all mobile models at reliable cost ..After unlocking your phone you can freely use it with any GSM sim .

To unlock your Sony Ericsson T707 phone use unlock code.Visit the site Simpleunlocking.com get the unlock code at reasonable cost and unlock it from Australian Optus network lock.

It may be due to network lock,
you can unlock it and switch over to another network , you can get unlock codes here http://www.prounlocking.com/sony-ericsson-z550i/rs8wp9/
you need to specify the country and network provider

Well again bumping into rules...Can be solved but not here as this comunity doesn't support hacking.

mobile unlock..it is very simple now a days..there are so many ways to unlock..last month i found a site here mobile unlock can be done..further http://www.mobileunlockguide.com/

Okay, well i do not know much about these phones but i will give you a few options that work for verizon.
You can try the standard "0000" also there is the possibility of it being the last four digits of your cell phone number. and if that doesnt work you can call your service provider and they can reset the code.

did you try asking there supposrt???

http://www.fillmobile.com

you cant use a sim card of a network onto another network, it cant hapen. unless you are saying your phone is locked to one network and it cant be used on another sim?

please unlock it with country code software

http://www.mobile2mobile.net/unlock/menu_remote_unlock.htm (for all models)

please go on this site and unlock ur phone