A515FXXU4DUB1 / A515FXXU4DUAE | Galaxy A51 One UI 3.0 (Android 11) Update

Updated on February 27, 2021: Today Samsung rolled the February 2021 security patch for the device in Singapore and Jordan with build number A515FXXU4DUAE....

Abd Razaaq

Last updated on June 27, 2026

Abd Razaaq

Author

I'm a Tech Content Writer and Full-Time blogger. Since I love Android and Google's device, I started my career in writing for Android OS and their features. This led me to start "GetDroidTips". I have completed Master of Business Administration at Mangalore University, Karnataka.

Updated on February 27, 2021: Today Samsung rolled the February 2021 security patch for the device in Singapore and Jordan with build number A515FXXU4DUAE.

Samsung has finally started rolling the stable Android 11 (One UI 3.0) for the Galaxy A51 (SM-A515F) globally with build number A515FXXU4DUB1. You will receive this official update via OTA if not, you can grab this OTA update or you can manually install it by following our guide.

The update brings all the latest Android 11 and One UI 3.0 features to it. With these new features on the table, this update wrapped under February 2021 security patch for the device.

Check Software Update on Galaxy A51:

You will get this software update on your Galaxy A51 as an OTA (over the air). If you haven’t received it yet, then check for the OTA update manually by following this:

Settings > Software Update > Tap on Download and Install if you find the new build number A515FXXU4DUB1.

Before upgrading, make sure you have enough juice (battery backup) on your Galaxy A51 and connected to a good WiFi network. If there is no new update, then follow this guide to manually install the firmware on your Galaxy A51.

Firmware Detail:

Device Name: Samsung Galaxy A51 (SM-A515F)
Region: Global
Build Number: A515FXXU4DUB1
Android OS Version: Android 11 R with One UI 3.0
Software Supported: ODIN Tool
Android Security Patch Level: 2021-02-01

How to Install One UI 3.0 (Android 11) on Galaxy A51 SM-A515F

In order to flash the firmware manually on your Samsung Galaxy A51 device, then you need to download the ODIN flash tool, firmware file, and drivers.

Pre-Requirements:

This firmware (A515FXXU4DUB1) is only supported by Samsung Galaxy A51.
Charge your device to 50% in order to avoid power-related interruptions during the installation process.
You need a PC and USB Cables.
Take a backup before flashing the software on your device.

Disclaimer:

GetDroidTips will not be responsible for any kind of hardware or software damage to your device while or after you follow this guide. Install non-official firmware on your device at your own risk.

Download Links:

A515FXXU4DUB1 | Download Samsung Firmware | Frija Tool or Samfirm Tool
Latest Samsung USB Drivers
Install the Samsung Kies software on your PC.
Flash tool: ODIN Flash tool

Firmware Installation Guide:

Download the ODIN Flash Tool on your PC
Make sure to download the new firmware and move it to the desktop
Open the ODIN and select the firmware file to flash it.
To know the process, read our guide on how to flash Samsung firmware using Odin
Also, check out our video tutorial.

I hope this guide was helpful to install the One UI 3.0 (A515FXXU4DUB1) on Galaxy A51.