One UI 3.1 for Samsung Galaxy S9 and S9+

Samsung Galaxy S9 and S9 Plus are getting a huge new software update with the April 2021 security patch level; many features from OneUI 3.1 based on Android 11. While the OTA update comes in a small package of 200 MB only, the features are quite significant. For one, it brings Wireless Dex to the Galaxy S9 and S9 Plus and possibly the Note 9! If you look at the changelog, you will notice a bunch of other important updates as well like Samsung camera pro mode, Always-on-Display, WiFi network quality information, Samsung Keyboard, etc.

samsung galaxy s9 and s9 plu huge update

The latest software update for the Galaxy S9 Plus features firmware build number G965FXXUFFUC6 / G965FOGCFFUC6 / G965FXXUFFUC6 and weighs 225.96 MB in size. The regular S9 gets build G960FXXUFFUC6. The OTA is live for the international variant with Exynos processor in Europe for now. You can expect the same for the North American Snapdragon variants in the United States soon. So stay tuned.

Samsung Galaxy S9 and S9 Plus already had Dex support, but it was wired. It lacked Wireless Dex even though the devices are fully compatible. The OEM may have realized it and pushed a huge Wireless Dex support for the S9 series with today’s update. We can expect the same for the Galaxy Note 9 as well.

Alongside Wireless Dex, the OTA brings “Network Quality Information Display” where the phone will notify if the connected WiFi network has very fast, fast, normal, or slow connection. This feature can be turned on or off under network settings.

Always On Display gets new Bitmoji Stickers support. Samsung keyboard adds a new feature under search that allows the user to search YouTube. Split Keyboard is supported under Landscape mode now. The complete changelog is listed below.

Complete changelog for Samsung Galaxy S9 and S9 Plus’ April 2021 security patch level

Samsung DeX

– Wireless DeX connection support. . Wireless connection with TVs through Wi-Fi Direct (compatible with Miracast). * Quick panel

– DeX . Usage of Samsung Smart TVs released after 2019 is recommended.

– Screen Zoom and Font Size options are supported to allow customization in various display sizes.


– If quality information on nearby Wi-Fi routers can be measured, this information will appear as Very Fast, Fast, Normal, or Slow. * This feature can be turned on or off in “Network Quality Information Display” settings.

– When attempting to access a Wi-Fi router with a password, a newly added feature now allows the user to request the password of the Wi-Fi router from someone nearby who is saved in their contact list and has already connected to that router. * The “Request Password” button will appear on the Wi-Fi password input screen when you can request a password.

Always On Display

– Bitmoji Stickers are supported on Always On Display. (Clock style)

Samsung keyboard

– A new feature has been added to the keyboard search feature that allows the user to search YouTube.

– Split Keyboard is supported on Landscape mode.

– The search function of the “Manage Input Languages” screen in the Keyboard Settings page has been newly updated to make it easy to find keyboard input languages that the user wishes to add or delete.


– The Pro Video feature has been enhanced.


– A feature has been added that allows the user to call a person who is saved as a pre-configured SOS message contact.

– A feature has been added that allows the user to send SOS location-sharing messages every 30 minutes for 24 hours.
The security of your device has been improved. * After updating, you will not be able to downgrade to the old software because of updates to the security policy.

Most of these features are already present in One UI 3.0 based on Android 11. Seems like this is to make the existing Galaxy S9 users happy as the device will never see another Android OS upgrade; even though its fully capable of running Android 11 or even later.


Follow and Subscribe

Sarang Avatar

One response

  1. David Avatar

    When and how I can download in USA? Thanks

Leave a Reply