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Hudson Harris
Hudson Harris

LG G3 F400L S K Stock Rom: The Best Firmware for Your Phone


Official LG G3 F400L S K Stock Rom: How to Download and Install It




If you own an LG G3 phone, you might have heard of the term "stock rom" or "firmware". Stock rom is the official software that comes pre-installed on your phone by the manufacturer. It contains the operating system, apps, settings, and features that make your phone work properly.




Official LG G3 F400L S K Stock Rom



However, sometimes you might want to install a different version of stock rom on your phone. For example, you might want to upgrade to a newer Android version, fix some bugs or issues, unroot your phone, or restore your phone to its original state. In that case, you need to download and install the official LG G3 F400L S K Stock Rom on your phone.


In this article, we will show you how to download and install the official LG G3 F400L S K Stock Rom on your phone. We will also explain what are the benefits and risks of doing so, and what are the steps and methods involved. By following this guide, you will be able to enjoy a smooth and stable performance on your LG G3 phone.


Introduction




What is LG G3 F400L S K Stock Rom and why you might need it




LG G3 F400L S K Stock Rom is the official firmware for the LG G3 LTE-A model with F400L/S/K variants. This model is mainly sold in South Korea by different carriers such as SKT, KT, and LG U+. The stock rom is based on Android 6.0 Marshmallow operating system and has a file size of about 1.23 GB.


You might need to install this stock rom on your phone for various reasons. Some of them are:



  • You want to upgrade your phone from an older Android version to Android 6.0 Marshmallow.



  • You want to fix some bugs or issues that are affecting your phone's performance or functionality.



  • You want to unroot your phone or remove any custom ROMs or mods that you have installed.You want to restore your phone to its factory settings or original state.



  • You want to sell or give away your phone and want to erase all your personal data and settings.



Installing stock rom on your phone can help you achieve these goals and improve your phone's performance, stability, security, and battery life.


What are the benefits of installing stock rom on your LG G3 phone




Some of the benefits of installing stock rom on your LG G3 phone are:



  • You can enjoy the latest features and updates from LG and Google, such as Doze mode, App permissions, Google Now on Tap, and more.



  • You can fix any software issues or errors that are causing your phone to lag, freeze, crash, reboot, or drain battery quickly.



  • You can unroot your phone or remove any custom ROMs or mods that might have caused problems or conflicts with your phone's software.



  • You can restore your phone to its original state or factory settings, which can help you solve any hardware issues or warranty claims.



  • You can erase all your personal data and settings from your phone, which can protect your privacy and security if you want to sell or give away your phone.



What are the risks and precautions of flashing stock rom on your LG G3 phone




While installing stock rom on your LG G3 phone can have many benefits, it also comes with some risks and precautions that you should be aware of. Some of them are:



  • You might lose all your data and settings on your phone, such as contacts, messages, photos, videos, apps, etc. Therefore, you should always backup your data before installing stock rom.



  • You might brick or damage your phone if you flash the wrong firmware or follow the wrong steps. Therefore, you should always check the compatibility of the firmware with your phone model and region, and follow the instructions carefully.



  • You might void your warranty or lose the official support from LG if you flash an unofficial firmware or modify your phone's software. Therefore, you should always flash the official firmware from LG or a trusted source, and avoid rooting or customizing your phone after installing stock rom.



Installing stock rom on your LG G3 phone is not a difficult task, but it requires some preparation and caution. You should always do some research and backup before flashing stock rom on your phone. You should also follow the steps and methods that we will provide in the next sections of this article.


How to Download LG G3 F400L S K Stock Rom




What are the requirements and tools for downloading stock rom




To download LG G3 F400L S K Stock Rom on your computer, you will need the following requirements and tools:



  • A Windows PC with an internet connection.



  • A USB cable to connect your LG G3 phone to your PC.



  • A fully charged LG G3 phone with at least 50% battery level.



  • A backup of your data and settings on your LG G3 phone.



  • The LG USB drivers for Windows installed on your PC. You can download them from here.



  • The LGUP tool for Windows installed on your PC. This is a software that allows you to flash stock rom on your LG G3 phone using KDZ or TOT method. You can download it from here.



  • The KDZ or TOT file of the LG G3 F400L S K Stock Rom that matches your phone model and region. This is the firmware file that contains the stock rom that you want to install on your LG G3 phone. You can find it in the next section of this article.



How to find the right firmware for your LG G3 model and region




To find the right firmware for your LG G3 model and region, you need to know two things: the model number and the region code of your LG G3 phone. You can find them by following these steps:



  • On your LG G3 phone, go to Settings > About Phone > Hardware Info. Here you will see the model number of your LG G3 phone. It should be F400L/S/K for the LTE-A variant sold in South Korea.



  • On your LG G3 phone, dial *#06# on the dialer app. Here you will see the IMEI number of your LG G3 phone. The last three digits of the IMEI number indicate the region code of your LG G3 phone. For example, if the IMEI number is 356789012345678, then the region code is 678.



Once you know the model number and the region code of your LG G3 phone, you can use the following table to find the right firmware for your LG G3 model and region. The table shows the KDZ and TOT file names, the Android version, the build number, and the download link for each firmware. You can choose either KDZ or TOT file, depending on the method that you want to use to flash stock rom on your LG G3 phone. We will explain the difference between KDZ and TOT method in the next section of this article.



Model


Region


KDZ File


TOT File


Android Version


Build Number


Download Link


F400L


SKT (678)


F400L30g_00_0927.kdz


F400L30g_00_0927.tot


6.0 Marshmallow


MRA58K


here


F400L


KT (679)


F400L30g_00_0927.kdz


F400L30g_00_0927.tot


6.0 Marshmallow


MRA58K


here


F400L


LG U+ (680)


F400L30g_00_0927.kdz


F400L30g_00_0927.tot


6.0 Marshmallow


MRA58K


here


F400S


SKT (678)


F400S30g_00_0927.kdz


F400S30g_00_0927.tot6.0 Marshmallow


MRA58K


here


F400S


KT (679)


F400S30g_00_0927.kdz


F400S30g_00_0927.tot


6.0 Marshmallow


MRA58K


here


F400S


LG U+ (680)


F400S30g_00_0927.kdz


F400S30g_00_0927.tot


6.0 Marshmallow


MRA58K


here


F400K


SKT (678)


F400K30g_00_0927.kdz


F400K30g_00_0927.tot6.0 Marshmallow


MRA58K


here


F400K


KT (679)


F400K30g_00_0927.kdz


F400K30g_00_0927.tot


6.0 Marshmallow


MRA58K


here


F400K


LG U+ (680)


F400K30g_00_0927.kdz


F400K30g_00_0927.tot6.0 Marshmallow


MRA58K


here


How to download the stock rom file from a reliable source




Once you have found the right firmware for your LG G3 model and region, you can download the stock rom file from a reliable source. There are many websites that offer LG G3 F400L S K Stock Rom files, but not all of them are trustworthy or safe. Some of them might contain malware, viruses, or corrupted files that can harm your phone or PC.


To avoid any risks or problems, you should always download the stock rom file from a reliable source. A reliable source is one that has a good reputation, provides accurate and updated information, and offers fast and secure download links. Some examples of reliable sources are:



  • The official LG website. This is the best and safest source to download the stock rom file for your LG G3 phone. However, the LG website might not have the latest or all versions of the stock rom file for your LG G3 model and region.



  • The XDA Developers forum. This is a popular and trusted source for Android enthusiasts and developers. Here you can find many threads and posts that provide the stock rom file for your LG G3 phone, along with instructions, tips, and feedback from other users.



  • The Android File Host website. This is a fast and secure source to download the stock rom file for your LG G3 phone. Here you can find many mirrors and servers that host the stock rom file for your LG G3 model and region.



To download the stock rom file from a reliable source, you need to follow these steps:



  • Go to the website that offers the stock rom file for your LG G3 model and region.



  • Find the download link or button for the stock rom file that you want to download. It should be either a KDZ or TOT file with a .kdz or .tot extension.



  • Click on the download link or button and wait for the download to start. Depending on the size of the file and your internet speed, it might take some time to complete.



  • Save the downloaded file on your PC in a folder that you can easily access later. You can rename the file if you want, but do not change its extension.



After downloading the stock rom file from a reliable source, you are ready to install it on your LG G3 phone. We will show you how to do that in the next section of this article.


How to Install LG G3 F400L S K Stock Rom




What are the steps and methods for installing stock rom on your LG G3 phone




To install LG G3 F400L S K Stock Rom on your LG G3 phone, you need to follow some steps and methods that will flash or overwrite the stock rom on your phone's memory. There are two main methods that you can use to install stock rom on your LG G3 phone: KDZ method and TOT method.


KDZ method is a simple and easy method that uses a KDZ file to flash stock rom on your LG G3 phone. KDZ file is a compressed file that contains all the necessary files and data for installing stock rom on your LG G3 phone. You can use this method if you want to install stock rom quickly and easily.


TOT method is a more advanced and complex method that uses a TOT file and a DLL file to flash stock rom on your LG G3 phone. TOT file is an uncompressed file that contains all the necessary files and data for installing stock rom on your LG G3 phone. DLL file is a driver file that helps your PC communicate with your LG G3 phone. You can use this method if you want to have more control and options over installing stock rom on your LG G3 phone.


Both methods require the use of the LGUP tool, which is a software that allows you to flash stock rom on your LG G3 phone using KDZ or TOT method. You also need to have the LG USB drivers installed on your PC, which help your PC recognize and connect with your LG G3 phone.


In this article, we will show you how to use both methods to install stock rom on your LG G3 phone. You can choose either method depending on your preference and situation. However, before you proceed with any method, you need to do some preparations first.


Preparations before installing stock rom on your LG G3 phone




Before you install stock rom on your LG G3 phone, you need to do some preparations first. These preparations are:


  • Backup your data and settings on your LG G3 phone. Installing stock rom will erase all your data and settings on your phone, so you should backup them before proceeding. You can use the LG Backup app or any other backup app to backup your data and settings on your phone or SD card.



  • Enable USB debugging and OEM unlock on your LG G3 phone. These are options that allow your PC to access and modify your phone's software. You can enable them by going to Settings > Developer Options > USB Debugging and OEM Unlock. If you don't see Developer Options in your Settings, you can enable it by going to Settings > About Phone > Software Info and tapping on Build Number seven times.



  • Charge your LG G3 phone to at least 50% battery level. Installing stock rom can take some time and consume some battery power, so you should charge your phone to avoid any interruptions or failures during the process.



  • Download and install the LG USB drivers on your PC. These are drivers that help your PC recognize and connect with your LG G3 phone. You can download them from here.



  • Download and install the LGUP tool on your PC. This is a software that allows you to flash stock rom on your LG G3 phone using KDZ or TOT method. You can download it from here.



  • Download the KDZ or TOT file of the LG G3 F400L S K Stock Rom that matches your phone model and region. This is the firmware file that contains the stock rom that you want to install on your LG G3 phone. You can find it in the previous section of this article.



  • If you want to use the TOT method, you also need to download the DLL file of the LG G3 F400L S K Stock Rom that matches your phone model and region. This is a driver file that helps your PC communicate with your LG G3 phone. You can find it in the same source as the TOT file.



After doing these preparations, you are ready to install stock rom on your LG G3 phone using either KDZ or TOT method. We will show you how to do that in the next subsections of this article.


How to use LGUP tool to flash stock rom using KDZ method




KDZ method is a simple and easy method that uses a KDZ file to flash stock rom on your LG G3 phone. To use this method, you need to follow these steps:



  • Connect your LG G3 phone to your PC using a USB cable.



  • Launch the LGUP tool on your PC. It should automatically detect and recognize your LG G3 phone.



  • Select "Upgrade" option from the drop-down menu at the top left corner of the LGUP tool window.



  • Click on the "..." button at the bottom right corner of the LGUP tool window and browse to the location where you saved the KDZ file of the LG G3 F400L S K Stock Rom that matches your phone model and region.



  • Select the KDZ file and click on "Open". The KDZ file should appear in the "File Path" box at the bottom of the LGUP tool window.Click on "Start" button at the bottom of the LGUP tool window and wait for the flashing process to begin. The flashing process might take some time and your phone might reboot several times during the process. Do not disconnect your phone or PC until the flashing process is completed.



  • When the flashing process is completed, you will see a "Complete" message at the top of the LGUP tool window. You can then disconnect your phone from your PC and turn it on.



  • Congratulations, you have successfully installed stock rom on your LG G3 phone using KDZ method. You can now enjoy the latest features and updates from LG and Google on your phone.



How to use LGUP tool to flash stock rom using TOT method




TOT method is a more advanced and complex method that uses a TOT file and a DLL file to flash stock rom on your LG G3 phone. To use this method, you need to follow these steps:



  • Connect your LG G3 phone to your PC using a USB cable.



  • Launch the LGUP tool on your PC. It should automatically detect and recognize your LG G3 phone.



  • Select "Refurbish" option from the drop-down menu at the top left corner of the LGUP tool window.



  • Click on the "BIN File" button at the bottom right corner of the LGUP tool window and browse to the location where you saved the TOT file of the LG G3 F400L S K Stock Rom that matches your phone model and region.



  • Select the TOT file and click on "Open". The TOT file should appear in the "BIN File" box at the bottom of the LGUP tool window.Click on the "DLL File" button at the bottom right corner of the LGUP tool window and browse to the location where you saved the DLL file of the LG G3 F400L S K Stock Rom that matches your phone model and region.



  • Select the DLL file and click on "Open". The DLL file should appear in the "DLL File" box at the bottom of the LGUP tool window.



  • Click on "Start" button at the bottom of the LGUP tool window and wait for the flashing process to begin. The flashing process might take some time and your phone might reboot several times during the process. Do not disconnect your phone or PC until the flashing process is completed.



  • When the flashing process is completed, you will see a "Complete" message at the top of the LGUP tool window. You can then disconnect your phone from your PC and turn it on.



  • Congratulations, you have successfully installed stock rom on your LG G3 phone using TOT method. You can now enjoy the latest features and updates from LG and Google on your phone.



Conclusion




In this article, we have shown you how to download and install the official LG G3 F400L S K Stock Rom on your LG G3 phone. We have explained what is stock rom and why you might need it, what are the benefits and risks of installing stock rom on your LG G3 phone, what are the requirements and tools for downloading stock rom, how to find the right firmware for your LG G3 model and region, how to download the stock rom file from a reliable source, and how to install stock rom on your LG G3 phone using KDZ or TOT method.


By following this guide, you will be able to enjoy a smooth and stable performance on your LG G3 phone. You will also be able to fix any software issues or errors, unroot or restore your phone, or erase all your data and settings from your phone. Installing stock rom on your LG G3 phone is not a difficult task, but it requires some preparation and caution. You should always do some research and backup before flashing stock rom on your phone. You should also follow the steps and methods that we have provided in this article.


We hope that this article has been helpful and informative for you. If you have any questions or feedback, please feel free to leave a comment below. We would love to hear from you and help you with any issues or problems that you might encounter while installing stock rom on your LG G3 phone.


FAQs




What is the difference between KDZ and TOT method?




KDZ and TOT method are two different methods that you can use to flash stock rom on your LG G3 phone using LGUP tool. KDZ method is a simple and easy method that uses a K


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