How To Flash Stock Firmware on LG G STYLO LS770 With LG UP Software. 

Flash Stock ROM on LG G STYLO. This is some versions of LG G STYLO, H634 (Cricket), LS770 (Boost Mobile, Sprint). This guide will show you how to flash or install firmware / Stock ROM on LG G Stylo device with a new official tool from LG, and this tool is called with LG UP software. This software works likes LG Flash tool 2014, but it can work with kdz or tot firmware. LG UP can be used to upgrade or downgrade LG software or fix some problem on LG G STYLO Android device, such as bootloop or bricked.

This LG G STYLO is the smartphone with 5,7 Inchi wide IPS LCD capacitive touchscreen, 16M colors, work on Android OS, v5.0 (Lollipop), upgradable to v6.0 (Marshmallow), and supported with Quad-core 1.2 GHz Cortex-A53 CPU, Qualcomm MSM8916 Snapdragon 410 Chipset, Adreno 306 GPU, combined with 1 GB of RAM and 8 MP of Main camera and 5 MP on secondary camera. And this device Released 2015, May.

Below, you can read full instruction guide how to flash stock firmware on LG G Stylo device.

Download Firmware For LG G STYLO .

Download all firmware and tools below ;

1. Download Stock Rom LG G STYLO   :  
2. If you can not find the KDZ file from the link above, you can try to download the KDZ by yourself.
3. Download KDZ file for all LG smartphone device.
4. Or, goto the direct link below.

• Here  

5. Download LG mobile support tool and install.
6. Download Driver LG (Ver. 4.0) :  
7. Download Verizon LG phones USB Driver.  
8. Latest LG UP :
9. Download LG UP DLL file, select the file support with your device.

• LGUP_8994_DLL_Ver_0_0_3_23.msi (This is for LG phones based on Qualcomm Snapdragon 810 MSM8994 SoC).
• LGUP_8974_DLL_Ver_0_5.MSI (This is for LG phones based on Qualcomm Snapdragon 800 MSM8974 SoC).

Guide To Flash LG G STYLO (LG UP)

You can flash or install Stock ROM or Firmware on LG device using LGflashtool2014, but on this guide we will show you flash LG device using LG UP, This is the new official tool from LG to flash LG G STYLO device.

1. Download firmware or stock ROM on item no 1 or 2 or 3 above, save it on your computer drive. I save all file above in C:\LG folder.
2. Then, install all file one by one.

• First, you must Install USB Driver
• Then, Install the latest LG UP software (this software run on most windows operating system versions)
• At last, Install LG DLL file that support with your LG G STYLO smartphone.

3. Once all file successfully installed on your computer, Then put your LG G STYLO Smartphone into download mode, you can manually do it by ;

• Turn Off your LG G STYLO Smartphone device.
• Then press and hold Volume UP button while connect your LG G STYLO Smartphone to the computer using USB cable.

4. Then run LG UP software.
5. Wait a moment until LG UP detect and recognize your LG G STYLO smartphone. This will install a necessary USB Drivers for your device.

6. Now, your LG UP should shows up on your computer screen.

LG UP - flash lg G STYLO

7. From LG UP screen above, go to process tab and select Upgrade. (1)
8. For the next step, see this guide