How to Install Samsung Galaxy J4 Security Patch (December 2018))

Download and Install Samsung Galaxy J4 security patchHow to Install Samsung Galaxy J4 security patch.
This update is only rolling out for Samsung Galaxy J4 devices. If you are a Samsung Galaxy J4 user, you may have already received the Samsung Galaxy J4 December 2018 Security Patch OTA update notification on your device. If the update has not been on your device’s system update section, then just wait for few more days for the update to come. We highly recommend you to install the update to be on the safer side. Android system should be updated to the latest build to stay safe from the malware attacks.

How to Install Samsung Galaxy J4 security patch

The OTA has been rolled out only available for Samsung users. This update comes with the latest security patch update which was released by Google in December Security. The update comes with build number J400FXXU2ARK5. The update brings some bug fixes which were available in the previous build. It also brings stability and performance improvements. Thus, you should download and install the update to your Samsung Galaxy J4 which will come as an OTA update to your phone. You can manually check for the update from

Settings > Software update >Download updates manually.

  • Device Name: Galaxy J4
  • Model: SM-J400F
  • Region: South Asian region (India, Sri Lanka, Nepal, and Bangladesh.)
  • Android version: Android 8.0 Oreo
  • Build Number: J400FXXU2ARK5
  • Android Security Patch Level: 1st December

Odin aka Odin Downloader is the one that can be used to flash the official firmware easily for the Samsung devices. It is used internally by Samsung to flash and test the stock firmware on their Galaxy devices even though it was never rolled out for the use of common people. But it was leaked on the internet for the public where the inputs of the firmware files are in the form of .tar or .tar.md5 formats.

Preparations By The Downloading

Just go through all the preparation steps before heading to the installation.

  • Always have a Backup.

It’s highly recommended that you should do a complete backup of all your device data before heading to the installation.

If you are having a rooted device, then you can take Nandroid backup using TWRP or with a Titanium backup to get the complete back download Odin Flash Toolup of the installed apps and related data.

Samsung users can use Smart Switch to backup data on the computer. Samsung Smart Switch even allows the users to move data from one device to another of the different variants (like moving data of Galaxy S7 to Galaxy S8).

  • Install the Samsung USB Drivers.

You must have a proper connection between your Samsung Galaxy device and the PC prior to using the Odin Flash Tool. Also make sure that before starting Odin Flash Tool, you have completely disabled the Samsung Kies if it’s installed on your PC as it can disturb the Odin tool connection and lead to bricking of the device.

For those who have not installed the suitable USB drivers on PC, please download it from the link below:

  • Charge your Samsung Device

Be sure that before you begin to flash, your Samsung Galaxy device has at least 60% battery level. Or else you could probably end up in bricking the device.

  • Download Odin Flash Tool

Now you should download the latest version of the Odin tool. Click the link below to download Odin:

  • Boot Samsung Galaxy Device into Download (Odin) Mode.

On Samsung Galaxy devices, it is supposed to flash only when it is rebooted into download more. It is almost similar in all the Samsung Galaxy devices, except Galaxy S8/S8+, Note 8, S9/S9 Plus.

How to install Samsung Galaxy J4 using Odin Flash Tool

Follow the link below for the instruction on how to flash the stock ROM

How to Install Samsung Galaxy J4 Using ADB Side-load and Stock Recovery

Follow the link below for the instruction on how to flash the stock ROM


  • If the device is not detected by Odin or the COM port doesn’t lighten up — You must be sure that you Kies is completely disabled and have properly installed Samsung USB drivers. Still doesn’t work? Try using a different USB cable or switch to a different USB port.
  • If you See a ‘FAIL!’ message in Odin — This can be of many reasons like you may not be using the correct firmware/Odin tool, or the USB connection could be different. For such cases, Simply force shut down the device and restart the procedure from step #1.
  • If the device enters a boot loop or it doesn’t go the past Samsung logo — Simply reboot into stock recovery and perform a factory data reset. To do that, power off the device. Then hold the [Volume up] + [Home/ Bixby] and [Power] key simultaneously for a few seconds. On the “No Command” screen, hold the power button and tap the [Volume up] key once. Once in entering the stock recovery, select ‘Wipe data/factory reset’ button and confirm the selection.

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