Phone unlocking

[Stacey7]

Hi could you tell me how to use sky sim card in my o2 phone as with o2 pay as you go and phone which i had to buy myself to be on o2 but now found a better deal with sky mobile which uses your mass but cant use sim card as phone locked

[Cleoriff]

Hi @Stacey7 

Guide: Unlocking an O2 phone to use a different SIM card