Dial *#06# on your phone's keypad. The 15-digit code will appear on the screen.
If you need a truly unlocked basic phone, consider buying a factory-unlocked Nokia 225 4G or AGM M7 instead of investing heavily in unlocking a Z2335L. Zte Z2335l Network Unlock
If you wish to use your ZTE Z2335L with a different SIM card (e.g., switching from Tracfone to T-Mobile or AT&T), you will need to perform a (also known as a SIM unlock). Dial *#06# on your phone's keypad
If a third party sells you a code, you are not breaking any law. Jailbreaking is for iOS; unlocking is legal for hardware you own. If you wish to use your ZTE Z2335L
Once you have the code (whether from Tracfone or a third party), follow these steps precisely. Inputting the wrong code too many times can permanently lock the device to the carrier.
Unlock ZTE Z2335L for any sim - DirectUnlocks
Insert the SIM card from your new service provider into the SIM slot. Power Up: Reinsert the battery and turn the phone back on.