The service allows you to unlock any Sony-Ericsson from the Oi Brazil network by code. Supported are all models appearing in this network. It is the safest way to unlock your phone without any interference in the phone.The service allows you to unlock any Sony-Ericsson from the Oi Brazil network by code. Supported are all models appearing in this network. It is the safest way to unlock your phone without any interference in the phone.