Sony Z520i Unlock code?

[diburnside]

Does anyone have a code to Unlock a Sony Z520i from O2? Many thanks.

I have tried the Code Calculator, but when I switch the phone back on without the sim, it just locks up and asks me to insert correct sim !!!

[acegames]

Dont think the code calculator will give you the code for this , you need other hardware to read the code , we do it £9.99 inc return postage