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One UI 4.0

Samsung Galaxy Z Fold/Flip 3 get fourth One UI 4 Beta update, stable awaited



Galaxy Z Fold 3

A couple of days ago, Samsung started to roll out the stable Android 12-based One UI 4.0 update to the Galaxy Z Fold 3 and Galaxy Z Flip 3 in South Korea and Serbia respectively. Later on, the company suspended the update rollout due to multiple issues reported by the consumers.

According to the latest information, Samsung is now rolling out the fourth One UI 4 Beta update for the Galaxy Z Fold 3 and Galaxy Z Flip 3 foldable smartphones in South Korea. It comes with fixes for the booting issue while in safe mode and entering recovery mode after the update.

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For more information, you can check out the changelog below.

Software info

  • Build version: ZUL4
  • Changelog:
    • Fixed the phenomenon of booting into safe mode or entering recovery mode after update
    • When booting after update, all values ​​changed to 16:9 or 4:3 aspect ratio are changed back to the app default
    • Instagram, Link does not open in some apps such as Facebook
    • Kiwoom Securities app does not run

Note: Changelog translated from Korean language.

Galaxy Z Fold 3

If you’ve participated under the Android 12-based One UI 4 Beta program on your Galaxy Z Fold 3 or Galaxy Z Flip 3 smartphones in the US, India, or South Korea, head to your phone’s Settings, hit the Software updates menu, and tap on the Download and install button.


James is the lead content creator on Sammy Fans and mostly works on Samsung's firmware section. His first phone was the Samsung Galaxy S4 and continue to get new S series devices. Most of the time, James tries to learn about new technologies and gadgets but he also sneaks a bit of free time to nearby rivers and nature.

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Android 12

Samsung Galaxy M31 One UI 4.0 (Android 12) test build appeared on Checkfirm



Samsung Galaxy M31 One UI 4

If we are talking about Samsung’s Galaxy M31 smartphone, then it is one of the best budget smartphones as it provides impressive performance to the users through its big battery life, 64MP quad-camera setup, Exynos 9611 SoC processor, and more remarkable features.

In terms of software, the device comes with One UI 2.0 based on Android 10. Later, the company rolled out One UI 3.0 based on Android 11 last year, and now users of the device are waiting for the next major Android update i.e. Android 12 (One UI 4.0).

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Samsung Galaxy M31 One UI 4

Now, the latest information from the One UI Test Build Detection app – Checkfirm reveals that the One UI build is currently being tested on the Galaxy M31. However, the testing for a major One UI update is conducted for the Indian variant as the Samsung India CSC code is INS.

In the screenshot, we can see that the One UI build has been tested on the Galaxy M31 with the PDA version – M315FXXS2BUK2. At the moment, we don’t have any information on the release date of the Android 12 based One UI 4.0 update for the Galaxy M31 but we can expect from today’s information that the release is near.

Read more: Samsung One UI 4.0 Update Changelog

Based on Android 12, One UI 4.0 comes with a set of new features redesigned UI with revamped icons, color palette, personalized widgets recommendation, and privacy functions. Additionally,  the One UI 4.0 also improves all of the stock apps, adds more lock screen widgets, quick settings toggles to turn off the camera and mic access, and more.

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Android 12

Samsung Android 12: Galaxy S21, Note 20, S20, Note 10 and S10 One UI 4.1 Update Info



Samsung One UI 4 Extra Dim

Since 2019, Samsung launched five flagship lineups: Galaxy S10, Galaxy Note 10, Galaxy S20, Galaxy Note 20, and Galaxy S21. Among them, the Galaxy S line includes three models, and the Note range consists of two models, although every lineup (except for Note 20 and S21) includes an affordable variant as well.

Samsung confirmed that all of the above-mentioned series phones are eligible for the Android 12 update. Swiftly, the company has rolled out the One UI 4.0 update to all of its flagships, however, consumers are now wondering about the One UI 4.1.

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If you own a Galaxy flagship and are interested to get the latest news on Samsung Android 12-based One UI 4.0 and One UI 4.1 for your device, you should regularly check this article. You can directly head to the specific lineup tracker by clicking on the links below.

Jump to page:

One UI 4.0 Update Roadmap:

On November 15, Samsung officially released the Android 12-based One UI 4.0 update roadmap for the Galaxy devices. The rollout plan revealed the One UI 4.0 update release timeline for various Galaxy phones and tablets in Brazil. You can check it by clicking the link below:

Galaxy S21 Android 12 One UI 4.1 Update Tracker

Samsung Galaxy S21, Galaxy S21+, and Galaxy S21 Ultra ship with Android 11-based One UI 3.1 pre-installed. Starting Android 12, these models will get major upgrades up to Android 14.

Samsung rolled out the stable Android 12-based One UI 4.0 update to the Galaxy S21, S21+ and S21 Ultra devices in various regions. You can check the current rollout status here.



January 24, 2022

  • Samsung officially confirmed that the Galaxy S22 series will be introduced at the Galaxy Unpacked 2022 in February. Along with the Galaxy S22 series, the company will also launch the new version of One UI that will be the One UI 4.1.


December 28, 2021

  • Breaking: Samsung resumes Galaxy S21 Android 12 One UI 4.0 update rollout! Read more


December 21, 2021

  • Samsung delayed Galaxy S21 Android 12 One UI 4.0 rollout due to Google Play issue. Read more


December 19, 2021

  • Samsung will release One UI 4.1 in February 2022, starting Galaxy S21, Note 20. Read more


November 23, 2021

  • Samsung Galaxy S21 Ultra gets Pro Mode for Telephoto lens with Expert RAW app, thanks to Android 12/One UI 4.0. Read more

Galaxy Note 20 Android 12 One UI 4.1 Update Tracker

The Galaxy Note 20 and Note 20 Ultra are the premium Note flagships from Samsung. The company had shipped these phones with One UI 2.5 on top of Android 10. Currently, these models running the Android 11-based One UI 3.1 and eligible to get Android 12 and Android 13 upgrades.


January 24, 2022

  • The One UI 4.1, based on Android 12, will launch in February 2022 alongside the Galaxy S22 series flagships, Samsung officially confirmed.


December 30, 2021

  • Samsung released official Android 12 One UI 4.0 to Galaxy Note 20 and Note 20 Ultra. Read more


December 19, 2021

  • Samsung will release One UI 4.1 in February 2022, starting Galaxy S21, Note 20. Read more


Galaxy S20 Android 12 One UI 4.1 Update Tracker

The last year’s Galaxy S20, S20+, S20 Ultra, and S20 FE came with Android 10 and One UI 2.x version out of the box and upgraded to the Android 11 last year. All of these devices are eligible to get platform updates up to Android 13.



January 24, 2022

  • The One UI 4.1, based on Android 12, will launch in February 2022 alongside the Galaxy S22 series flagships, Samsung officially confirmed.


December 29, 2021

  • Samsung Galaxy S20 gets official Android 12-based One UI 4.0 update. Read more

Galaxy Note 10 Android 12 One UI 4.1 Update Tracker

The Galaxy Note 10, Note 10+ and Note 10+ 5G are the older Note flagships, which were shipped Android 9 and received two major Android updates so far. Meanwhile, the Galaxy Note 10 Lite launched with Android 10 and all of these handsets are compatible with three Android upgrades.

Also Check: Samsung Galaxy Note 10 Series Android 12 One UI 4.0 Update Status



January 24, 2022

  • The One UI 4.1, based on Android 12, will launch in February 2022 alongside the Galaxy S22 series flagships, Samsung officially confirmed.


December 30, 2021

  • Samsung Galaxy Note 10 gets official Android 12 One UI 4.0 update. Read more


Galaxy S10 Android 12 One UI 4.0 Update Tracker

Samsung’s Galaxy S10e, S10, S10+, and S10 5G were shipped the Android 9 while the Galaxy S10 Lite ships with Android 10. It means, the Android 12 is going to be the last major update for the Galaxy S10 flagships, but the Galaxy S10 Lite will also get the Android 13.

Also Check: Samsung Galaxy S10 Series Android 12 One UI 4.0 Update Status



January 24, 2022

  • The One UI 4.1, based on Android 12, will launch in February 2022 alongside the Galaxy S22 series flagships, Samsung officially confirmed.


December 30, 2021

  • Samsung Galaxy S10 (5G too) One UI 4.0 Android 12 rollout begins! Read more

This article will be updated regularly!

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One UI 4.0

Samsung One UI 4.0 Update Changelog



Samsung One UI 4 Changelog

After several beta updates, Samsung officially announced a stable One UI 4.0 based on the Android 12 update. As expected, it comes with numerous new features and changes for a better experience.

One UI 4.0 is the fourth iteration of Samsung’s custom skin which brings with redesigned UI with revamped icons, color palette, apps enhancement, personalized widgets recommendation, and privacy function inspired by Android 12.

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Samsung One UI 4 Changelog

Based on Android 12, One UI 4 makes it easy to focus on what’s important and gives you the option to personalize your Galaxy to suit your style as well as allow you to seamlessly switch to other Galaxy devices.

If you have also updated to this major update on your device and want to know about the features of One UI 4.0, then this article is going to be very helpful.



Ahead of the stable release, Beta Operation Manager shared the full changelog of the One UI 4.0. Android 12 based One UI 4 brings you a wide collection of new features and enhancements for your Galaxy devices. You can check the official Samsung One UI 4 changelog and instructions below.


Color palette

Customize your phone with unique colors based on your wallpaper. Your colors will be applied to menus, buttons, backgrounds, and apps throughout your phone.



One UI 4 offers strong privacy protection to make sure your personal information doesn’t fall into the wrong hands.

  • Permission info at a glance
    See when each app accesses sensitive permissions such as Location, Camera, or Microphone in Permission usage. You can deny permissions for any apps you don’t feel comfortable with.
  • Camera and microphone indicators
    Keep prying eyes and ears away. A green dot will appear in the upper right corner of the screen when any app is using the camera or microphone. You can also use quick panel controls to temporarily block all apps from using the camera or microphone.
  • Approximate location
    Keep your exact location private. You can set apps that don’t need to know exactly where you are to only have access your general area.
  • Clipboard protection
    Keep your passwords, credit card numbers, and other sensitive information safe. You can choose to receive an alert whenever an app accesses content copied to the clipboard in another app.

Samsung Keyboard

More than just typing, Samsung Keyboard is all about expressing yourself and having fun.

  • Quick access to GIFs, emojis, and stickers
    Self-expression is a tap away. Get to your emojis, GIFs, and stickers directly from the keyboard with a single button.
  • Animated emoji pairs
    Can’t find the right emoji? Combine two emojis together, then add an animation to really get your feelings across.
  • Even more stickers
    Spice up your conversations with a variety of new animated stickers available to download.
  • Writing assistant
    Keep your grammar and spelling on point with the new Writing assistant, powered by Grammarly (English only).

Home screen

It all starts on the Home screen, where your favorite apps and features are just a tap away. One UI 4 helps you keep your home screen looking its best all the time.

  • New widget design
    Widgets have been redesigned to look better than ever, with info that’s easy to see at a glance and a more consistent style.
  • Easier widget selection
    Having trouble finding the right widget? You can now quickly scroll through the widget list to see what’s available from each app. You’ll also get recommendations for useful widgets to try out.

Lock screen

Use widgets to handle quick tasks without unlocking your phone, whether it’s controlling your music, checking your schedule, or capturing your best ideas.

  • Listen where you want
    Switch audio output from buds to speakers to your phone, all from the Lock screen.
  • Voice recording
    Got a great idea? Record a voice memo without unlocking your phone.
  • Calendar and schedule at once
    Check today’s schedule along with your calendar for the rest of the month on the Lock screen.


Enjoy a simpler layout while you take pictures and videos. The scene optimizer button only appears in Photo mode if there’s low light or you’re scanning a document. Portrait and Night mode settings are now tucked away and more intuitive.

  • Lens and zoom
    Lens icons show the magnification level, so you know how much you’re zoomed in.
  • Video that never misses a moment
    Recording starts immediately after you tap the Record button, instead of when you release it, so that you catch those precious moments before they’re gone. In Photo mode, you can touch and hold the Shutter button to start recording a quick video, then drag your finger to the Lock icon to continue recording without holding down the Shutter.
  • Keep your single takes going
    Add 5 seconds of extra time to Single take captures so you don’t miss a moment even if it goes into overtime. It’s also easier to select what you want to capture.
  • Pro photography
    Stay in control with the redesigned Pro and Pro video mode settings. The cleaner look helps you focus on the shot, and the new level indicators added to the grid lines help you keep shots balanced.
  • Enhanced scanning
    Scan documents, then tap the magnifying glass to zoom in and edit them immediately. You can also do more after scanning QR codes, like calling or emailing someone instead of just adding their contact info to your phone.
  • Portraits for pets
    Take beautiful pictures of your furry friends with various portrait effects. Portrait mode now works with cats and dogs on both the front and rear cameras. Some portrait effects can only be applied after you take the picture.


Whether you’ve got thousands of pictures and videos or just a few treasured moments, Gallery makes it easier to find what you need and keep your collection organized.

  • Enhanced stories
    See your stories come to life with highlight videos that are created automatically. Just tap the preview at the top of each story to watch. You can also explore where the pictures in your stories were taken in the new Map view.
  • Easier albums
    Sort through albums more easily—even if they’ve got tons of pictures. In fact, you can sort albums by how many p
  • Worry-free remastering
    Revert remastered pictures to their original versions at any time, even after they’re saved, so you never have to worry about losing the original.
  • More control over information
    Change or remove the date, time, and location of your pictures to correct it or keep it private. You can also select several pictures and edit their information at once.

Photo and video editor

Sometimes your photos and videos need a few tweaks. One UI’s Photo and Video editors are there to make your pictures look their best before you share them.

  • Emojis and stickers
    Use an emoji to cover the face of a shy friend or add stickers to create fun pictures and videos.
  • Video collages
    Make moving collages that include pictures, videos, or a combination of both. Pick out the perfect moments and create your masterpiece.
  • Lighting control
    Picture too dark because of bad lighting? The new Light balance feature helps you pull out all the details to make it look great.
  • Highlight reels
    Easily turn a set of pictures and videos into a beautiful movie. Just choose a theme, and the AI will add the music and transitions automatically.
  • Never lose the original
    Get bold with your editing! You can now revert both pictures and videos back to their original versions after they’re saved, or save them as copies to keep both the original and edited versions.
  • Paste from one picture to another
    Experiment with mixing and matching faces, pets, buildings, and more. You can cut any object out of one picture and paste it into a different one.

AR Emoji

Use your own personal emojis to spice up your messages, make fun videos, and more. You can create a digital version of yourself, or try a different look. The possibilities are endless.

  • Jazz up your profile
    Use an AR emoji as your profile picture in Contacts and Samsung account. You can choose from over 10 poses or create your own expressions.
  • Face stickers
    Pretend to be your emoji with new stickers of your emoji’s face. Have fun decorating your photos and sharing them with your friends.
  • Dance the night away
    Make cool dance videos with your AR emojis. Choose templates from 10 different categories including #Fun, #Cute, and #Party.
  • Design your own clothes
    Ever wanted to be a fashion designer? You can now use your own drawings to create unique clothes for your AR emojis.


One UI helps you stay connected and share your experiences with others. Just tap the Share button in any app.

  • More customization
    Make sharing your own. You can customize the list of apps that appear when you share content to keep the clutter away and focus only on the apps you use regularly.
  • Easier navigation
    New layout and better navigation makes sharing a breeze. Swipe left or right to scroll through apps and contacts when you’re sharing.
  • Photo sharing
    When you share a picture that doesn’t look quite right, whether it’s out of focus or not framed well, we’ll let you know and give you suggestions for fixing it.


One UI 4 makes it even easier to keep your busy life organized.

  • Check your schedule on the Home screen
    A new widget shows your schedule for the day along with a full calendar for the month.
  • Quick add events
    Need to add something to your calendar in a hurry? Just enter a title and you’re done.
  • More search options
    You’ve got more ways than ever to find your calendar events. Choose from recent search keywords or filter by color or sticker.
  • Share with others
    Sometimes you need to keep others in the loop. It’s now easier to share your calendars with other Galaxy users.
  • Easier date and time selection
    Setting event details is a breeze with separate date and time options.
  • Recover deleted events
    Events you delete will stay in the Trash for 30 days so you can get them back if you need them.

Samsung Internet

One UI’s fast and secure web browser now makes it even easier to find the webpages you’re looking for and protect your privacy.

  • Search suggestions
    Get more search suggestions when you enter text in the address bar. Results will appear with an all new design.
  • Search from the Home screen
    The new search widget helps you find what you’re looking for, right from the Home screen.
  • Start in Secret mode
    To protect your privacy, Samsung Internet will automatically start in Secret mode if you were using Secret mode during your last browsing session.

Device Care

See your phone’s performance, security, and battery life at a glance, solve problems quickly, and get deep diagnostics for more complex issues.

  • Battery and security at a glance
    Battery and security issues will appear right on the main screen so you can solve problems more quickly.
  • Understand your phone’s overall status
    Your phone’s overall status is shown as an emoji, so you can understand instantly.
  • Diagnostic checks
    Now you can get right to Samsung Members diagnostics from Device Care. If something seems wrong with your phone, try the diagnostic tests to find out what the problem is and get suggestions for solving it.

Samsung Health

Manage all your health data in one place and start building habits for a better tomorrow. Track your exercise, sleep, food intake, and more. One UI 4 makes it easier than ever.

  • All new design
    Your important data is just a tap away. Everything you need is in easy reach as four tabs at the bottom of the screen.
  • My page
    Get a summary of your health stats, achievements, personal bests, and progress on the My page tab.
  • Challenge your friends
    Starting a Together challenge is easier than ever. Invite friends by sending a link.
  • More inclusive
    Gender options are more inclusive. You can now choose Other or Prefer not to say.
  • More food options
    Recording your food intake is easier with more snacks added to the food tracker.

Bixby Routines

Make your phone do more for you. Turn on Wi-Fi automatically when you come home, or set your phone to silent when you’re at work. One UI 4 gives you even more possibilities.

  • More conditions
    More conditions are available for your routines. Start a routine during a call or when a certain notification arrives.
  • More actions
    You can now turn on Enhanced processing with a routine. There are also more options such as connecting and disconnecting Bluetooth devices.
  • More control
    Reorder actions by touching and holding actions on the edit page. Advanced options have also been added to let you wait before an action starts, confirm actions, and more.
  • More combinations
    We’ve removed restrictions for some combinations of conditions and actions so you can do even more with your routines.
  • More customization
    Create custom icons for your routines using the Camera or an image from Gallery.



One UI is designed for everyone. In One UI 4, you’ll get even more options to help you use your phone in the way that’s most comfortable for you.

  • Always there when you need it
    Access accessibility features more quickly with a floating button that’s always available.
  • Mouse gestures
    Perform actions more quickly by moving your mouse pointer to one of the 4 corners of the screen.
  • Adjust your screen at once
    Adjust contrast and size at the same time with custom Display mode (High contrast or Large display).
  • Eye comfort
    More visibility options are available to meet your needs. You can reduce transparency or blur.
  • Extra dim screen
    If your screen is too bright, even at the lowest brightness setting, turn on Extra dim for more comfortable reading in the dark.
  • Customizable flash notifications
    Make the screen flash when you receive a notification. You customize colors for each app so you can easily determine where a notification is coming from.
  • Easier magnification
    Magnifier window has been merged with the new Magnification menu, giving you more options and more control for magnifying content on the screen.

More features and improvements

  • Better Always On Display
    Never miss a notification. You can now set Always On Display to turn on whenever you get a notification. New animated stickers are also available to keep your Always On Display looking fresh.
  • Enhanced Dark mode
    To keep you comfortable in the dark, Dark mode now automatically dims wallpapers and icons. Illustrations in Samsung apps now have Dark mode versions with darker colors for a more consistent experience that’s easier on your eyes.
  • Charging info at a glance
    When you start charging, different visual effects let you know your charging speed more intuitively.
  • Easier brightness control
    A bigger brightness bar in the quick panel makes it easier to change screen brightness with a swipe.
  • Tips preview videos
    Learn more about what your Galaxy can do with preview videos on the main screen of the Tips app.
  • Safety and emergency menu
    The new Safety and emergency menu in Settings lets you manage your emergency contacts and safety information all in one place.
  • Settings search enhancements
    Improved search features help you find the settings you need, when you need them. You’ll get suggestions for related features depending on what you search for.
  • Keep your eyes on the road
    The new Driving monitor in Digital Wellbeing keeps track of when you use your phone while driving. You’ll get reports on how much you used your phone and which apps you used.
  • Skip an alarm just once
    Feel like sleeping in? You can now turn off an alarm just for one occurrence. It will turn back on automatically after it’s skipped.
  • Day or night at a glance
    Have a friend on the other side of the world? It’s easier to see if it’s a good time to contact them. The dual clock widget now shows different background colors for each city depending on whether it’s day or night.
  • Switch from texts to calls
    Texting not cutting it? Tap the person’s name at the top of the conversation to see their details or start a voice or video call.
  • More search results in Messages
    Now you can search your messages for photos, videos, web links, and more. The results are all filtered so you can jump right to what you’re looking for.
  • Easier search in My Files
    Find the file you’re looking for, even if there’s a typo or the name doesn’t match exactly. The Recent files area has also been expanded to help you quickly locate files you’ve used or received recently.
  • More complete desktop experience
    More apps are resizable in Samsung DeX, so you can multitask and get more done throughout the day. You can also change the touchpad scrolling direction in DeX settings to match your personal preference.
  • Enhanced Edge panels
    Keep your current app in view while using edge panels. Blurring has been removed to help you see more at once.
  • Resizable picture-in-picture
    If a floating video is getting in the way, pinch your fingers together to make it smaller. Want to see more? Spread your fingers apart to make it bigger.
  • Quick access to pop-up window options
    For easier multitasking, you can pin the window options menu to the top of the window to make it easier to access.

Some apps will need to be updated separately after the One UI 4 upgrade.

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