LG Apex US740 hard resetTurn phone off, while phone is off hold the down volume button, then press the home key on the keyboard and the power button. As soon as the phone comes back on, let go of keys and it should then be reset. You will lose all your info so take out the SD card.
1. From the Home screen, press the Menu Key and touch Settings.
2 Touch the Privacy
4 Touch Factory data reset.
5 Touch Reset phone.
6 Touch Erase everything.
You can use LG Mobile Support tool to repair some LG cell phone model, after download select menu Customer Support > Recovery Phone
If you know LG Apex Android hard reset with buttons / keys pls leave comment.