Hello, Am resident in Denmark. I have an old iPhone 4 which is fully paid for since 2013. I bought it off TMobile network in London, The UK. They are now called and owned by EE, also in the UK. I would like to unlock the phone so I could use it with a SIM card here in Denmark. I had been using the phone as a SIM only \”pay as you go\” cusomer with EE when ever I visit the UK. I have the IMEI number.Thank you.