Recommend steps (If you are rooted, pass):
1) Enable “USB Debugging” on your phone and connect your device to the PC.
– Settings->General->About Phone->Software Information and click “Build number” 7 times
– When “Developer options ” appears, remove cable, enable “USB Debugging”, mount cable
2) Install TWRP (get AUTO & D802 from http://forum.xda-developers.com/showthread.php?t=2472223)
– Check your phone and click OK if pop-up for allowing connection appears. It can pop more than once.
3) boot into TWRP, choose “Reboot” then “System”, swipe to install SuperSU
4) After reboot, open Apps and find “SuperSU Installer”, run, install via TWRP
5) Use CleanMaster (nice look) or Titanium Backup (more functions) to cleanup the following:
Bloat List
(All tested, safe to remove — other non-essential apps can also be removed, like Memo and Music)
AAT
Answer Me
App Updates
Camera test
Cell broadcast
CloudHub
ELTest
Favorite Contacts-Widget
GNSS-AirTest
GnssTest
Google+
Google Backup Transport
Goolge Play Books
Google Play Magazines
Google Play Movies & TV
Google Play Music
Key Chain
LGATCMD-Service
LG Backup
LG GNSS
LGInstallService
LG MLT
LGSearchWidgetProivder
LGSetupWizard
Life Square
Life Square Log Manager
MirrorLink Cert Test
Notebook
Plug & Pop
POLARIS Office View
QVoice Engine (Required by Voice Mate)
QVoice Speech Pack
Shutdown Monitor
SmartShareProvider
SmartShare-Beam
TextTranslator
Update Center
Video Editor
Video Trim
Voice Mate (“Siri”, but tested and disappointed)
VPNDialogs
VUTalk
Widevine Keybox Test
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