Samsung 三星W21 5G W2021ZCU2DVCB

Samsung 三星W21 5G W2021ZCU2DVCB Firmware

Samsung 三星W21 5G W2021ZCU2DVCB is an Android 12 firmware for China (CHC). It is the same firmware configured per region and carrier (CSC). Find your country below, verify the file and download for free. Compared with the previous build W2021ZCU2CVA2 https://samfirm.shop/build/W2021ZCU2CVA2: Android updated from Android 11 to Android 12; security patch 2022-03-01 instead of 2022-02-01. A newer build for SM-W2021 is available: W2021ZCU7GZE1 https://samfirm.shop/build/W2021ZCU7GZE1.

9.2/10 (457)4,398 times
Android 12
OS Version
2022-04-11
Build Date
2022-03-01
Security patch
1
Countries
1
CSC codes
2
Bootloader binary

Bootloader binary 2. Flashing firmware with a lower binary is usually blocked by Samsung anti-rollback.

Newer builds of Samsung 三星W21 5G use bootloader binary 7 (latest: W2021ZCU7GZE1 https://samfirm.shop/build/W2021ZCU7GZE1). If your device already runs binary 7, this build cannot be flashed.

All regional downloads

Pick your region (CSC) to download the matching firmware package.

Paste your current build number from Settings > About phone (About tablet) > Software information, or the output of *#1234#.
    MODEM/CP Version: W2021ZCU2DVCB
    ModelRegionCSC VersionRelease dateSizeFile nameDownload
    SM-W2021
    CHC China
    W2021CHC2DVCB 2022-04-11 6.85 GiB
    SM-W2021_3_20220328083001_5782ox5z5h_fac.zip

    No matching downloads

    What's new in W2021ZCU2DVCB

    One UI 4.1 Upgrade (Android 12)
    One UI 4.1 brings you the latest features for your Galaxy devices. More intuitive, more fun, more secure, and easier than ever.
    Check out the changes below.

    Gallery
    Do more with your memories. Gallery brings enhanced features for remastering and organizing your pictures and videos, and sharing is now easier than ever.
    Add portrait effects
    You can now add background blur to any picture with a person in view.
    Convert unnecessary motion photos to still images
    Save storage space by converting motion photos to still images. Gallery will suggest pictures where motion isn't necessary, such as documents.
    Share albums as links
    No need to invite people to shared albums individually anymore. Just create a link that can be shared with anyone, even if they don't have a Samsung account or Galaxy device.
    All your invitations together
    Easily accept invitations to shared albums, even if you miss the notifications. Invitations that you haven't responded to yet will appear at the top of your shared album list.
    Create time lapse videos
    Turn a picture into a vivid 24-hour time-lapse video. A button will appear for pictures of scenery including the sky, bodies of water, mountains, or cities. Your video will appear as if an entire day has passed.
    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 pictures and videos they contain so that your favorite and most used albums are always at the top of the list. A cover image also appears at the top of the screen when you view an album to give you a better feel for what the album contains.

    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.

    AR Zone
    Express yourself like never before in augmented reality. Create your own emojis, stickers, doodles, and more.
    Background colors in mask mode
    Keep the focus on your AR emoji while wearing it as a mask. Choose from a variety of colors to use as your background.

    Smart Switch
    Transfer contacts, photos, messages, and settings from an old phone or tablet to your new Galaxy. One UI 4.1 lets you transfer more than ever.
    More transfer options
    You’ll get 3 options when transferring content to your new Galaxy. You can choose to transfer everything, transfer just your accounts, contacts, calls, and messages, or go Custom to choose exactly what you want to transfer.

    Privacy

    One UI 4.1 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.

    Home screen

    It all starts on the Home screen, where your favorite apps and features are just a tap away. One UI 4.1 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.

    Camera

    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.

    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.

    Sharing

    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.

    Share your WLAN network
    Use S Share to share your current WLAN network with someone else. The person you share with will be able to connect automatically without entering the password.
    Include editing history when you share pictures and videos
    When you share pictures and videos with Quick Share, you can include the complete editing history so the receiver can see what's changed or revert back to the original.

    Calendar

    One UI 4.1 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.

    Smart Manager

    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.

    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 4.1 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.

    Get insights about your body composition
    Set targets for your weight, body fat percentage, and skeletal muscle mass. You'll get tips for reaching your goals.
    Build better sleep habits
    Track your sleep and get coaching based on your sleep patterns.
    Enhanced exercise tracking
    On your Galaxy Watch4, you can set interval training targets before you start running or cycling. You'll get a report on your phone when you're finished. Your watch can also give information about sweat loss when you run and heart rate recovery for aerobic workouts.

    Bixby Routines

    Make your phone do more for you. Turn on WLAN automatically when you come home, or set your phone to silent when you’re at work. One UI 4.1 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.

    Accessibility

    One UI is designed for everyone. In One UI 4.1, you’ll get even more options to help you use your phone in the way that’s most comfortable for you.

    More features and improvements
    Color palette
    Customize your phone with unique colors based on your wallpaper. Your custom color palette now appears in more apps.
    Add emojis to your calendar
    In addition to stickers, you can now add emojis to a date on your calendar to express your feelings.
    Take quick notes while you browse
    Keep track of your sources with new clipping options for Samsung Notes. You can include content from Samsung Internet or Gallery when you create a note using the quick panel or the Tasks edge panel.
    Customize your sound balance
    In Accessibility settings, you can adjust the left/right sound balance for connected devices, such as speakers or headphones, separately from the sound balance for your phone speakers. This allows you to get the perfect balance out of your headphones without affecting how your ringtone and speakers sound.
    New actions for Bixby Routines
    You can now create routines that turn on advanced settings like Protect battery.
    Customize your virtual memory
    Choose the size of your phone's virtual memory with RAM Plus in Device care. Go with more to boost performance or less to save storage space.
    Some apps will need to be updated separately after the One UI 4.1 update.

    How to flash W2021ZCU2DVCB

    • W2021ZCU2DVCB has bootloader binary 2. Your device must run binary 2 or lower: it is the 5th character from the end of your current build number.
    • CSC: Use CSC for a clean install, to change the region (CSC code), to downgrade or to repair a device that does not boot.
    • HOME_CSC: Use HOME_CSC to update the same model and region while keeping your data. Back up anyway: a failed update can still require a reset.
    • The Download Mode key combo depends on the model: see all combos.
    Full flashing guide
    Beware: Manually flashing firmwares may brick your device. Use it at your own risk and follow our tutorial steps.

    Frequently Asked Questions

    W2021ZCU2DVCB is Android 12 firmware for Samsung 三星W21 5G, released for China (CHC). It includes the 2022-03-01 security patch. Samsung built it on 2022-04-11.

    No. A newer build for SM-W2021 is available: W2021ZCU7GZE1. Install it instead of W2021ZCU2DVCB unless you need this exact version. The previous build was W2021ZCU2CVA2.

    Download the package for your region (CSC) and unzip it. In Odin, load each file into the slot with the same name: BL, AP, CP (if the package has one) and CSC, or HOME_CSC to keep your data. Odin checks the built-in checksum of every .tar.md5 file before flashing. The download is 6.85 GiB; keep about twice that free on the computer to unzip it. The Samsung 三星W21 5G must be on bootloader binary 2 or lower.

    This build uses bootloader binary 2. It can be flashed on a Samsung 三星W21 5G running binary 2 or lower; if the device already has a higher binary, Odin stops with "SW REV CHECK FAIL". 18 other builds of this model use the same binary, so you can switch between them in both directions.

    Other builds and changelog for Samsung 三星W21 5G

    • Stability and reliability
    Device behavior has been improved.

    These changes may vary depending on the model, country, or network operator of the customer environment.

    • The latest Android security patch has been applied.
    - Device security has been further enhanced.

    • The latest Android security patch has been applied.
    - Device security has been further enhanced.

    • The latest Android security patch has been applied.
    - Device security has been further enhanced.

    • The latest Android security patch has been applied.
    - Device security has been further enhanced.

    Show 15 older builds
    One UI 5.1.1 Update
    Multitasking

    Better app previews on the Recents screen
    The Recents screen now shows apps as they will appear after you open them. You can easily see if an app is opened in split screen, full screen, or as a pop-up.

    Easily switch from pop-up view to split screen
    Press and hold the handle at the top of the pop-up window, then drag the app to the side of the screen where you want it to be shown.

    Restore pop-ups snapped to the edge of the screen
    Drag an app in pop-up view t...

    • Overall stability of your device has been improved.
    • The latest Android security patch has been applied.
    - Device security has been further enhanced.

    • The Camera and Gallery functions have been improved.
    • Overall stability of your device has been improved.

    The 天翼云VR app will be removed after the update followed by a factory data reset. To keep using the application, please download the app from an app store such as the Galaxy Store.
    • The latest Android security patch has been applied.
    - Device security has been further enhanced.

    One UI 5.1 Update

    One UI 5.1 takes your phone to the next level with new Gallery features as well as productivity and personalization enhancements.

    Camera and Gallery

    Quickly change the color tone for selfies
    It's easier to change the color tone of your selfies using the Effects button at the top of the screen.

    More powerful search
    You can now search your Gallery for more than one person or subject at the same time. You can even search for people without tagging their names just by tappin...

    • Overall stability of your device has been improved.

    One UI 5 Upgrade (Android 13)

    One UI 5 brings you more powerful personalization and makes it easier to get things done across your Galaxy devices.

    Visual design

    New app icons and illustrations
    Icon symbols are larger for a bolder look that's easier to scan. Subtle background gradients and improved contrast give a fresher, more natural feel. New help illustrations have been created to give a consistent look to all apps.

    Smoother than ever before
    New animations and transition effects make swi...

    One UI 4.1.1 Update
    Multitasking

    Switch between apps quickly
    A taskbar now appears at the bottom of the main screen for quicker navigation between apps.

    Quickly open apps in split screen or a pop-up window
    Drag apps from the taskbar or Recents screen to open them however is most convenient for you. Drag to the top, bottom, left, or right edge of the screen to open in split screen. Drag to the center of the screen to open in a pop-up.

    Open app pairs quickly
    Pair apps that you often use toge...

    • Overall stability of your device has been improved.

    - The latest Android security patch has been applied.
    ㆍDevice security has been further enhanced.

    • Following applications or features added: 芒果TV三星版
    • Overall stability of your device has been improved.

    - The latest Android security patch has been applied.
    ㆍDevice security has been further enhanced.

    One UI 4.1 Upgrade (Android 12)
    One UI 4.1 brings you the latest features for your Galaxy devices. More intuitive, more fun, more secure, and easier than ever.
    Check out the changes below.

    Gallery
    Do more with your memories. Gallery brings enhanced features for remastering and organizing your pictures and videos, and sharing is now easier than ever.
    Add portrait effects
    You can now add background blur to any picture with a person in view.
    Convert unnecessary motion photos to still images
    Save...

    • Overall stability of your device has been improved.
    • The latest Android security patch has been applied.
    - Device security has been further enhanced.

    • Overall stability of your device has been improved.
    • The latest Android security patch has been applied.
    - Device security has been further enhanced.
    ※ After the updating, it is needed to agree to the terms and conditions due to the enforcement of the Personal Information Protection act.

    One UI 3.1.1 Update

    One UI 3.1.1 for W21 5G takes your productivity to the next level. Multitasking is easier than ever with enhanced multi-window and task-switching features. We've also optimized more apps to take advantage of the large screen, helping get more done. Explore these exciting new additions that make your W21 5G easier and more fun to use.

    Scroll down for a full list of changes.

    Multi window
    • Touch and hold text, a link, or a file in Notes, My Files, Messages, or Samsung Intern...