Unlock any iPhone Locked to O2 Ireland
To unlock your O2 Ireland iPhone, first check that it is locked. Insert a different SIM card, and if your phone is locked you will get a 'SIM Network Unlock message' or similar.
Next, if your phone is locked, we offer official IMEI unlock more quickly, though there is a fee involved.
O2 Ireland unlock will be sent to you over the air via WiFi or 3G/4G (iOS 7 or above required.)