Hard Reset LG Optimus Z

1. Device must be switched off to succeed this operation. 
2. Then press and hold Volume Down + Home button + Power button. 
3. Release them after 8 seconds, when LG logo appears.
4. Now your phone will restart and Master reset will start automatically.
5. Done, you can use your device now.

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WARNING !
Hard Reset will erase all of your data
All described operations you are doing at your own risk.

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