How to factory reset LG K3 (2017)? How to wipe all data in LG K3 (2017)? How to bypass screen lock in LG K3 (2017)? How to restore defaults in LG K3 (2017)?
The following tutorial shows all method of master reset LG K3 (2017). Check out how to accomplish hard reset by hardware keys and Android 6.1 Marshmallow settings. As a result your LG K3 (2017) will be as new and your Qualcomm Snapdragon 210 MSM8909 core will run faster.
How to Hard Reset LG K3 4G LS450 - Erase Data / Reset Settings
Hard Reset will erase all of your data
All described operations you are doing at your own risk.