Hello Jose. The first thing that you need to do, is to check in which network your iPhone is locked, its Blacklist status, its financial status, its contract status, its iCloud status and if it has a Replaced IMEI/Serial number. Then, you can contact the network that is locking your device, and request for an unlock (An Official and Formal one). Our SIM-Lock deactivation service does all the above for you. You only have to provide us your iPhone's IMEI number and we will fully check it and we will take care of the communication between you and your Lock carrier. You can order it from the following link: https://www.iphoneunlock.zone/iphone-unlock-checker/