Many modems and mobile phones come in cheap rate, but it remains locked to a particular network. Hence, it needs to unlock through the unlock code. After changing the sim card, various modems ask for a password / unlock code and can be unlocked by providing the unlock code. But what you will do if you have a ZTE mobile phone. After changing the sim other than the ZTE mobile phone default, it does not ask for the unlock code. But, still, it can be unlocked with some hidden tips and tricks. To generate the unlock code, you can go to this link. After generating the unlock code for your IMEI, follow the simple steps to insert the unlock code into your ZTE phone.
How to insert the unlock code to a ZTE phone?
1. Insert an unacceptable SIM card (other than default sim, which has initially purchased) to locked ZTE phone
2. Now, your ZTE phone should ask to unlock code (NCK code).
3. Enter the code, and it will be unlocked.
4. In case your ZTE phone does not ask for an unlock code, then remove the SIM card and try the combination of code ###825*09#.
5. Now, your ZTE phone will prompt for an unlock code.
6. Enter the code, and your ZTE phone will be unlocked.
7. If the above code does not work, then dial *983*8284#, and it should work for you.
8. You can also try *983*865625#. *983*865625# combination works for few models of ZTE phones like F102.
