A115FXXU2AUA3: March 2021 Security Patch for Galaxy A11 (Global)


Samsung Galaxy A11 started receiving March 2021 security patch update with build number A115FXXU2AUA3 which is based on Android 10.

The update is rolling via OTA (Over the air) in a phase-wise manner and will soon hit every user around the world. If you have a Galaxy A11 with variant SM-A115F, then you may receive the notification to upgrade your security patch to March 2021 with build number A115FXXU2AUA3.

A115FXXU2AUA3: March 2021 Security Patch for Galaxy A11 (Global)

Check Software Update on Galaxy A11:

If you are using Galaxy A11, then you may receive the March 2021 patch with firmware version A115FXXU2AUA3. If you don’t then check for the OTA update manually by following the step: Settings app | About Phone | System Updates. In case you see any new updates, click on the download button to start the upgrade process.


Before upgrading, make sure you have enough juice (battery backup) on your Galaxy A11 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 A11 using the ODIN tool.

Firmware Info:

  • Device Name: Samsung Galaxy A11 (SM-A115F)
  • Region: Global
  • Build Number: A115FXXU2AUA3
  • Android OS Version: Android 10
  • Software Supported: ODIN Tool
  • Android Security Patch Level: 2021-03-01 

How to Install March 2021 Patch on Galaxy A11

Flashing firmware on your Galaxy device is easy, all you need is firmware, drivers, and a tool called ODIN. If you have all this, then you are good to follow this guide.


  • This firmware (A115FXXU2AUA3) is only supported for Samsung Galaxy A11.
  • 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.


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:

Firmware Installation Guide:

For the installation process, you can follow the guides given below. It includes a video tutorial as well as a practical approach to the installation process.

So, make sure to download the March 2021 Security patch for your Galaxy A11 model with build number A115FXXU2AUA3. We hope that this guide was helpful to you.

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