Make my phone sim free

[Shancock]

How do I make my handset sim free now I am out of contract 

[BandOfBrothers]

Try another sim in it as it may already be unlocked @Shancock 

If not then use the form found here forms/unlock-code-request/ 

[BandOfBrothers]

To add another option @Shancock  is to pay a fee to a reputable online unlocking site or a Highstreet Store that advertise they unlock phone's to all Network's.