Hi. I have and old 02 Nokia Lumia 520 which is no longer used. I bought a 3 Prepay sim yesterday with the intention of giving the phone to my grandson. However the phone is "locked to a specific mobile operator" and is looking for an unlock code. I can't use the unlock option on the 3 site as the phone isn't associated with a current number. Is there any other way of unlocking the phone (I only want access to the 3 network, not any other operator). Thanks.
