Unlocking of ZTE is now supported. Now we can provide the factory unlock code of ZTE phone. You might already know that if a smartphone is locked to a particular network, then you can not use it with any other network provider SIM card.
Once the device is unlocked, you can use default SIM card, as well as another carrier SIM card also.
Unlocking of ZTE by code is one-time work. It does not change any firmware or software, means you will not loose the warranty. In order to receive a correct network unlock code for your ZTE, you need to mention the 15-digit IMEI number. You can find the IMEI of your phone by dialing *#06# as a phone number.
Note I: If your phone has dual-SIM, then only mention the first slot IMEI. Once code entered, both SIM slot will be released.