Required for Unlock:
1. LG G3 device with good battery charged
2. Falcon box or other box but should be option for unlock
3. Micro usb cable
4. Computer or laptop
Procedure:
1. Open Falcon box
2. Go to LG Tab option
3. Attach device
4. Choose Port : LGE AndroidNet USB
5. Jump to Operations it right side
6. Tick : Remove Pattern Lock [No Root]
7. Tick :
Remove Pin / Password Lock [No Root]8. Tick :
Remove Google Account [No Root]9. Tick :
Remove Knock Code [No Root]10. Last click on :
LG Qcom Unlock button
11. Wait until unlock device
12. You are done
LG G3 Unlock done screenshot: