You can now download android lollipop ROM for the LG Optimus G Pro and this custom lollipop ROM comes with root functionality. For flashing this ROM, you need to have latest custom recovery.
1) Download ROM from bottom of this article and install / restart recovery
2) factory reset existing ROM, clear dalvik cache.
2) install rom in recovery
Here are its list of features.
# base Lollipop 240L30C
# Integrated into flash rom
# Clear app Korea
# Root
# Reboot into G Pro custom recovery and use hardware keys Home + Power + VOL- to go into recovery.
# Fix overheat, battery power
# Fix Fast Charger
# Fix rom smooth
# Fix rom stable
# Fix call recording
# Taction
# LGTaskManager G3
# Apply ear receive calls
# Vietnamese goods
# Fix memory card 98x
# Fix getting the right card in 98x
# Fix for external speakers 98x
# NFC.
# Volume wake
# Knock on, knock code
# 6 lock screen effect
Effects Lockscreen weather outside (no fix is)
# Navigate the virtual
# Miniview
# Add 4 seasons G3 theme 5.0.1
# Add 2 theme Glex
# Toggle flashlight
# Add lunar
# 2G only