Download A405FMPUU3BTC4: March 2020 Patch for Galaxy A40 [Russia]


Samsung rolled a bug fix update which also bumps the security patch level of the Galaxy A40 to March 2020 based on Android 10. As we speak, the update is rolling via OTA with build number A405FMPUU3BTC4 which makes its way to the Russian region.

With the latest Android security patch level, Samsung has fixed the one critical vulnerability in addition to dozens of high and moderate risk vulnerabilities in the Android OS. We recommend you to upgrade your device to this latest security patch of build number A405FMPUU3BTC4.  To receive this update, make sure whether you are running the latest iteration. You can always manually check for the OTA update by going into Settings on your Galaxy A40.

Download A405FMPUU3BTC4: March 2020 Patch for Galaxy A40 [Russia]

How to Check Software Update on your Galaxy A40?

If you want to install the A405FMPUU3BTC4 March 2020 update, then go into settings –> System > System Updates. If you have any update, then you will see a new screen with the software details. You can hit the download now button to confirm the update process.


Ensure that your phone should be charged more than 50% and connected to a Wi-Fi network as well.

If there is no update, then you can manually download and install the Samsung firmware on your Galaxy A40. Well, OTA rollout is a phase-wise manner, it may take a week or months to complete the update process. So patience is important.

Firmware Info: A405FMPUU3BTC4

  • Device Name: Samsung Galaxy A40 (SM-A405FM)
  • Region: Russia
  • Build Number: A405FMPUU3BTC4
  • Android OS Version: Android 10
  • Software Supported: ODIN Tool
  • Android Security Patch Level: 2020-03-01 

How to Install Firmware on Galaxy A40

In order to flash the firmware manually on your Samsung Galaxy A40 device, then you need to download the ODIN flash tool, firmware file, and drivers.


  • This firmware (A405FMPUU3BTC4) is only supported by Samsung Galaxy A40.
  • 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: A405FMPUU3BTC4

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.

How to install stock firmware on Galaxy A40 using ODIN tool

So, make sure to download the March 2020 Security patch for your Galaxy A40 model with build number A405FMPUU3BTC4. We hope that this guide was helpful to you.


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