Start with this simple procedure by completing the following steps. Therefore without any doubt, you can start with: Free IMEI Unlock Code Generation Process The free IMEI unlock code generator can unlock your device without this information because it has the opportunity to switch with the device directly from where it will gain all required information and combination. You don’t have to search for some particular details that your mobile phone device has like IMEI number, year on production, carrier, and other information. Enter the IMEI number of your ZTE modem and click on calculate to generate the unlock code. NCK is the unlock code for unlocking your ZTE modem. ZTE modem/dongle unlock code calculator (12 Digit) - Here you have 2 codes. Change the SIM in ZTE modem and connect to PC. Enter the IMEI number of your ZTE modem and click on calculate to generate the unlock code. It will open the dongle ZTE software and will ask. But here you have the simplest one for sure. It’s more then fun to solve this problem freely whit our ZTE unlock code calculator 16 digit program. You maybe find some other tools that allow you to find the right unlock code for your device.