Guide To Flash / Bricked - Bootloop LG G3 D855 / D857 / D859 with Original Stock ROM Using LG Flash Tool (KDZ method).

Flash / Install Firmware LG G3 D855 / D857 / D859. This smartphone is the Android smartphone which announced in May 2014, and exactly released on 2014, August. Guidebelajar on this guide will explain to you how to flashing android device on LG G3  with an easy and simple step. Flashing in android is the same way like the fresh install on the windows PC, So by performing a flash on Android, you will give a new performance like a new phone. One reason that you should perform a flash your android is because your android gets bootloop or when you failed to install Stock ROM Mod. 

This LG G3 is the smartphone with 5,5 Inchi wide LCD, work on Android OS, Android OS, v4.4.2 (KitKat), upgradable to v5.0 (Lollipop) and supported with Quad-core 2.5 GHz Krait 400 CPU, Qualcomm MSM8974AC Snapdragon 801 Chipset, combined with 3 GB of RAM and 13 MP of  Main camera and 2,1 MP on secondary camera. 

Flash / Bricked - Bootloop LG G3 D855 / D857 / D859

Now, follow the instruction list below, do it with your own risk.

Requirement Tool For Flash LG G3.

Before you perform flash or install your firmware on LG G3,
you must download all requirement tool below ;

1. Download Stock Rom LG G3:  
• This Stock is KDZ file, remember to copy this KDZ file into LG Flash Tool 2014 folder
• Check the firmware that matches with your phone version, 
• The V10 is the KitKat version
• The V20 is for the Lollipop Version
• And, you can see  a letter, that is little updates, you can download the one with the "last" letter
2. Download Driver LG: 
3. Latest LG FlashTool: 

#1. Guide To Flash LG G3

Please follow this guide carefully to flash LG G3.

1. Make sure you have downloaded all requirement tool above
2. Then Install the drivers with your phone connected to your Computer, when it finished disconnecting your LG G3 phone from your computer.
3. Now turn your LG G3  phone off, then click continuously on the up volume and connect your phone to your PC, 
4. Now, enter your LG G3 into download mode.  ( visit this guide )
5. Run LGFlashTool2014.exe.
6. If you cannot run LGFlashTool2014.exe, You must install Visual C++ Runtime Library, get here 
7. There are two options to flash your LG G3.
• Normal Flash: You can select this option if you want Flash ROM without losing any data. Only use this when you need to fix system error.
• CSE Flash: You can choose this option when you need a fresh format. All data will be deleted. It's suitable for upgrading or downgrading ROM or simply use this when you need to back to Stock.



LG flash tool normal flash / CSE flash

8. Select Type: CDMA
9. Phone Mode: DIAG
10. Select KDZ file: browse your KDZ file in your drive
11. Then you can Click on Normal Flash or CSE Flash (see step 7 to decide this option)
12. Then click Start.

    

    LG flash tool - start

13. Then click on Clear Phone Software update registry.

    

    Lg flash tool - Clear Phone Software update registry.

14. No need to choose the desired language, it automatically changes to English as a default setting.
15. Finally, you can click OK.
16. You must wait a minute for the LG Mobile Support tool to recognize the LG G3 device.
17. When you wait this process, may take 5 minutes the tool to recognize it.
18. The software will start the extraction on your device.
19. When the process reaches 100% your LG G3 will reboot.
20. Then, you must Unplug your LG G3  from your computer by remove USB Cable from it.,
21. Finish,

#2. Guide To Flash LG G3

If #1 method is failed to flash your LG Android device, you can use this second method, flashing LG device using R&D Test Tool. Here