I want to unlock my sony g3311

[BandOfBrothers]

As long as the Vodafone Uk criteria is met they will unlock a phone that is locked to their network @Ahmedariyan 

i.e 

On Payg the sim card has been used in the phone for 30 days and to make calls etc in the phone.

On pay monthly the sim card has been used in the phone for 30 days and x3 Bill's have been paid on time.

Use this form to request the unlock 》

unlock-code-request 

These explain more about unlocking 》

Unlocking-your-phone  and How-do-I-use-my-nuc.