After unlocking, your mobile phone will be practically "Never locked". Unlocking is permanent and general. After unlock you will be able to use your mobile phone with any GSM carrier around the world. Also, you will be able to install any firmware version (stock or custom), upgrades OTA and even factory reset.IMPORTANT NOTICE: We are able to provide codes, but we are not able to see if your device is capable of accepting an unlock code, so this is your responsibility to check prior to placing an order. To find this out, insert not accepted SIM card, and then if mobile phone asks to enter an unlock code, this service can be used. If you are not able to test this, it is advised that you do not place an order.To begin, just start the application and click the "Check Prices / Status" button from the dashboard.If your order is from the phone running the application, we complete the IMEI for you - there is no need to take it yourself from the phone.After the payment, as soon the order completes we’ll send you the code via email.Almost all ZTE android phones are supported!!!