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A908BXXU1ASJ4 October 2019 Security Patch For Samsung Galaxy A90 5G

Written by Hassan Abbas

You can now install the latest security updates on Samsung Galaxy A90 5G. The new update comes with October 2019 security patch. Nowadays, Samsung is so aggressive in providing security patches for its devices. We already know that with the start of the new month, all of the OEMs have started rolling out the monthly updates for their devices. Here in this article, we come with the latest official firmware, which is October 2019 security patch for Samsung Galaxy A90 5G variants. The latest update comes with build number A908BXXU1ASJ4 along with many security improvements and bug fixes.

The most recent update comes with many new features, improvements, bug fixes, and much more. The update is still based on Android 9.0 Pie over Samsung’s One UI skin. Samsung started rolling out the security update via OTA (over-the-air), currently available in European countries. It will be available gradually all over the world.
If you are from a specific region, then check the notification by going to Settings menu > System Update > tap on Check for Latest Updates.

If you find the new update with build id A908BXXU1ASJ4, then you can download and just install it on your device. You can flash the official firmware on Galaxy A90 5G using the Odin flash tool. Now proceed to follow the given instructions on how to install October 2019 security patch for Samsung Galaxy A90 5G.


This guide containing the Official October 2019 security patch firmware and instructions can be used only with the Galaxy A90 5G. Do not try to install this firmware on any other device or incorrect variant. Verify the model number of your device by navigating to Settings > About Phone, the model number of your device must be SM-C900F.


We will not responsible for any damage that occurred to your Samsung Galaxy A90 5G during or after the installation of the October 2019 security patch Proceed at your risk.


  • Make a proper backup of all the existing data and settings of your Galaxy A90 5G; in case anything goes wrong, then you’ll be able to restore your data back.
  • Verify that you’ve correctly installed the Galaxy A90 5G USB Drivers on the PC.
  • Enable USB Debugging Mode on your Galaxy A90 5G by navigating to Settings > Developer Options > check the USB Debugging option.
  • If you have a custom ROM installed on the phone, then after installing this stock update, it will be lost.
  • The stock version will replace the custom recovery.
  • If the Galaxy A90 5G will no longer belong to a rooted version once the stock firmware installed.
  • Check the battery level of your Galaxy A90 5G, and it should be charged at least about 80% before proceeding to the installation guide.

Required Files:

How to Flash October 2019 Security Patch On Galaxy A90 5G Android Pie Update:

1: – First, download the October 2019 security patch+ official update and Odin v3.10.7 for Galaxy A90 5G on the desktop of your PC.

2: – Now, extract the archived contents to get the tar.md5 update file. Don’t extract the tar.md5 firmware update file.

3: – Turn OFF your Galaxy A90 5G to boot into Download Mode.

4: – Turn the device ON by pressing and holding the Volume Down + HomePower keys at the same time for a while till the construction Android robot and a triangle appear. Now press the Power button once again to confirm to enter into Download Mode.

5: – Launch Odin tool on your PC as an Administrator and plug your phone into your PC while your phone is in the Download Mode.

6: – One of the ID: COM boxes will turn yellow with the COM port number once the phone is connected successfully.

7: – Select the firmware files tar.md5 that you want to flash on your Galaxy A90 5G. (Already extracted in 1)

Click on ‘AP’ and select file with ‘AP’ in its name.

Click on ‘CP’ and select file with ‘MODEM’ in its name. Ignore this step if there is no such file.

Click on ‘CSC’ and select file with ‘CSC’ in its name. Ignore this step if there is no such file.

Click on ‘PIT’ and select the .pit file. Ignore this step if there is no such file.

Click on ‘BL’ and select file with ‘BL’ in it’s name. Ignore if there is no such file.

8: – In Odin, make sure that the Auto Reboot and F. Reset Time options are ticked, but the Re-Partition option should be unchecked.

How to Install Odin On Windows 7/8/10

9: – Click on the Start button in Odin to initiate the installation process. It will take a few minutes.

10: – Once the installation process is successfully finished, the Galaxy A90 5G will restart. Unplug the phone after you see the home screen.


Done! These were the simple steps to download and install the October 2019 security patch Galaxy A90 5G Android Pie update. If you still find any difficulty then let us know in the comment section below!

Also Read: Guide on How to Fix Error Executing Updater Binary In Zip

About the author

Hassan Abbas

Tech enthusiast with too many items on his wish-list and not nearly enough money! Specializing in all things tech, with a slight Apple bent he has been writing for various blogs for the best part of (too many) years

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