Download N986BXXU2DUDA: May 2021 Patch for Galaxy Note 20 Ultra 5G

Today Samsung Galaxy Note 20 Ultra 5G (SM-N986B) receiving a new firmware update with software version N986BXXU2DUDA based on Android 11.0. The update is now live globally which includes the May 2021 Security Patch for the Galaxy Note 20 Ultra 5G model and you can easily download and install it by following the guide below.

The update waving in batches via OTA and may take a couple of days or more to arrive on all the units completely. For your info, the May 2021 patchset fixes a security vulnerability in the media framework that could enable a remote attacker to cause security issues. In short, it provides enhanced system security for the device.

Download N986BXXU2DUDA: April 2021 Patch for Galaxy Note 20 Ultra 5G

Check OTA Update

The OTA update always roll-out in a phased manner and not all the users may get the same update at the same time. So, it’s better to check for the software update on your device via Settings > System > System Updates > Check for Updates.

If the latest firmware update is available for your handset, simply grab it by downloading and installing it.

Ensure that the device is charged more than 60% and connected to a Wi-Fi network as well.

Firmware Info: N986BXXU2DUDA

  • Device Name: Samsung Galaxy Note 20 Ultra 5G (SM-N986B)
  • Region: Global
  • Build Number: N986BXXU2DUDA
  • Android OS Version: Android 11.0
  • Software Supported: ODIN
  • Android Security Patch Level: 2021-05-01

How to Install Stock Firmware on Samsung Galaxy Note 20 Ultra 5G

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


  • This firmware (N986BXXU2DUDA) is only supported for Samsung Galaxy Note 20 Ultra 5G in the South Asian region.
  • 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:

  1. First, download all the necessary files on your PC including the ODIN Flash Tool.
  2. Install and launch the ODIN flash tool > Select the Galaxy Note 20 Ultra 5G stock firmware file according to your region to flash it.
  3. You can check out the full depth firmware flashing guide here: How to Install Samsung Stock Firmware Using Odin Flash Tool
  4. For better visualization support, you can also check out our full-depth video tutorial.

So, make sure to download the May 2021 Security patch for your Galaxy Note 20 Ultra 5G model with build number N986BXXU2DUDA. We hope that this guide was helpful to you.

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