How to set up 02 networkfor internet on my phone

[jakki]

Hello,
i have a hiphone 4 when i put two 02 sims in it keeps saying either invalid sim or failed to register! can someone help plz

 

[Saga Lout]

Hello,
i have a hiphone 4 when i put two 02 sims in it keeps saying either invalid sim or failed to register! can someone help plz

I'm guessing here but it would seem the phone hasn't been jailbroken or opened to any other SIM than the one it was sold for.