hardreset
Turn the phone off.
1. Press and hold the following keys at the same time: Volume Down Key + Power/Lock Key on the back of the phone.
2. Release the Power/Lock Key only when the LG logo is displayed, then immediately press and hold the Power/Lock Key again.
3. Release all keys when the Factory hard reset screen is displayed.
4. Press the Power/Lock Key to continue or either of the Volume Keys to cancel.
5. Press the Power/Lock Key once more to confirm or either of the Volume Keys to cancel.
FRP
https://www.youtube.com/watch?v=JCA6yRJmyz0
Turn the phone off.
1. Press and hold the following keys at the same time: Volume Down Key + Power/Lock Key on the back of the phone.
2. Release the Power/Lock Key only when the LG logo is displayed, then immediately press and hold the Power/Lock Key again.
3. Release all keys when the Factory hard reset screen is displayed.
4. Press the Power/Lock Key to continue or either of the Volume Keys to cancel.
5. Press the Power/Lock Key once more to confirm or either of the Volume Keys to cancel.
FRP
https://www.youtube.com/watch?v=JCA6yRJmyz0