I want to unlock my mobile phone sony ericsson T630 for free. Is there a posibility

Hi is your sony ericsson T630 phone is asking for network lock code once you insert your sim in it then it mean your phone is locked to some other network provider due to this it wont accept any other GSM sim until you unlock it ...You can easily unlock your phone using online providers like SimpleUnlocking.com here they are rendering network unlock code for all mobile models at reliable cost .You first check that whether the code is available for your country and network provider .If yes then pay for it and unlock your phone then freely use it with any GSM sim ...

You can unlock it via unlock codes and for unlock codes try Simpleunlocking and get unlock codes to unlock your Sony Ericson T715 and dont go for free unlocking since the code generated for free may some times go wrong..

you can get unlock codes here http://www.unlocking4u.com/sony-ericsson-t630/rs6wp9/

if you havent changed the code from the original the code should be the last four digits of your phone number

This means the phone is locked to a different carrier. You need to contact that carrier and have them give you the unlock code for that device. There are programs and companies out there that will unlock phones, but they charge a fee. If you contact the provider the phone is locked to they will give it to you for free.

Try this site might be helpful to you www.dotsis.com

You need to contact service provider to get the code .
You need to submit the IMEI number of mobile and serial number of mobile to get the code .

there are two ways round this try the PUK code which you will need to get from your service provider or call ericsson for a default unlock code