A515FXXU5EUG7 | Samsung Galaxy A51 September 2021 Security Patch

Samsung started rolling the September 2021 security patch software update for the Galaxy A51 variant with build number A515FXXU5EUG7. The update brings no major changes apart from the security fix and minor updates to improve the performance.

The update started seeding via OTA (over the air) for users with a device mode (SM-A515F). If you have not received this OTA update, then you can manually flash this via ODIN software on your device. You can follow this guide to flash the A515FXXU5EUG7 build manually on Galaxy A51.

Check Software Updates

Before manually upgrading your device via ODIN, you can check the software update, Just tap on the Settings menu > Software Update > If available for your region, tap on Download and Install.

Make sure to check for the mentioned build number of the update as well. However, if you have some pending updates available, we’ll recommend you complete installing all the available updates to get a new one in the future.

A515FXXU5EUG7 | Samsung Galaxy A51 September 2021 Security Patch

Just make sure to connected to a good mobile data or Wi-Fi network for a better downloading speed. Also, keep in mind to have a proper battery backup on your device (around 50%).

However, if in case, there is no update available on your device, we have an additional method that you can manually follow below. First of all, let’s check out the firmware update info before heading over to the manual firmware installation method.

Firmware Detail:

  • Device Name: Samsung Galaxy A51 (SM-A515F)
  • Build Number: A515FXXU5EUG7
  • Android OS Version: Android 10
  • Software Supported: ODIN Tool
  • Android Security Patch Level: 2021-09-01

How to Install Galaxy A51 September 2021 Security Patch

Before jumping into the firmware flashing process, ensure to check out the requirements, and download links. You’ll require to download the ODIN flash tool, firmware flash file, and drivers on your computer. Let’s take a look.


  • This stock firmware (A515FXXU5EUG7) is only applicable to the Samsung Galaxy A51 model.
  • Keep your device charged up to 50% to avoid occasional shut down during the firmware flashing process.
  • A Windows PC/Laptop and a USB Data Cable will require.
  • Make sure to a full data backup before flashing the software on your device.


GetDroidTips will not be responsible for any kind of hardware or software damage to your device while or after you follow this guide. Do the manual flashing process at your own risk. Taking a full data backup is always recommended.


Download Links:

Firmware Installation Guide:

That’s it, guys. We hope you’ve now successfully installed the latest September 2021 security patch on your Galaxy A51 device. Have some queries? Let us know in the comment section below.


  1. My incoming group texts will not work since this upgrade. This upgrade. I can send outgoing group texts but not incoming. I have checked all of the settings and they are fine. No changes, other than the update.

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