[Guide] Factory Reset Android LG G4 to Remove PIN, Pattern Lock, and Password. 

Factory Reset LG G4. There are many version of this devices, among them are H815T (Hong Kong), H815TR (Turkey), H815 (EMEA), H815P (LATAM, South Africa), H810 (AT&T), H811 (T-Mobile), LS991 (Sprint), VS986 (Verizon), US991 (US Cellular), H812 (Canada). This method is called hard reset or factory reset  is used for remove forgotten PIN, remove forgotten password, remove pattern lock, or when your android device run slowly. LG G4 is the Android smartphone that comes with 5,5 Inchi IPS LCD capacitive touchscreen, 16M colors, work on Android OS, v5.1.1 (Lollipop), upgradable to v6.0 (Marshmallow)) and supported with Quad-core 1.44 GHz Cortex-A53 & dual-core 1.82 GHz Cortex-A57 Processor, Qualcomm MSM8992 Snapdragon 808 chipset, Adreno 418 GPU, combined with 3 GB of RAM, 16 MP on Primary camera and 8 MP on secondary camera. This LG G4 is released on 2015, April.

Factory reset is called hard reset or master reset, hard reset will removes all data and setting on your android device. such as :

1. App settings..
2. Downloaded apps
3. Contacts
4. System and app data
5. Email accounts
6. Media (Music, pictures and videos, etc.)

#1. Hard Reset LG G4 Using Menu :

1. Make sure your batery is fully charged, Recomended you have 80% of battery capacity
2. Then Backup your LG G4. see this guide
3. Now, from the Home Screen tap Apps.
   
4. Then tap Settings.
5. Tap General Tab -> Backup & Reset.
6. Tap Factory Data Reset to restore default settings.
7. Tap Reset Phone -> Delete All to perform a factory reset. Now your LG G4 will reboot when reset is complete.

#2. Hard Reset LG G4 Using Hardware Keys:

1. Make sure your battery is fully charged, we recomended that your battery has 80% power
2. Always BackUp your important data that store in LG G4. see this guide
3. Power Off your LG G4 by press and hold Power Button for a second.
4. Release any SIM card and SD card that was installed on your LG G4 smartphone.
5. Then press and hold a combination key Power button + Volume Down at the same time. This button is located an the back side of LG device.

   

   Hard Reset Android LG G4
6. Then you will see the LG Logo appear on screen, Release Power button then quickly push it again the power button.

   

   Logo LG - reset Lg X Screen
7. Now, release all buttons when the Factory Mode appears on the LG G4 screen.
8. Wait a while, you will enter Factory Data reset to erase all user data and restore default setting.

   

   Hard Reset LG g4

9. On this screen you can use Volume down button to select menu, and execute your choice using power button.
10. If you select Yes your phone will start erase all user data and restore default setting, and your phone will show screen like this picture.
    
11. You can wait a while for LG G4 to reboot system
12. Done, your hard reset process success now.