Bellow is shown the exact method to insert the unlock codes for LG KF245c
1. Power on your phone with accepted SIM card
2. Enter 2945#*7101#
3. A menu will pop up, go to settings-security-sim lock.
4. Enter your unlock code (NCK code) and hit OK
Need an LG KF245c unlock code,can get it for less that 3$ :Lg unlock codes