Samsung Galaxy Tab S10+ X820ZCU7DZE3

Samsung Galaxy Tab S10+ X820ZCU7DZE3 Firmware

Samsung Galaxy Tab S10+ X820ZCU7DZE3 is an Android 16 firmware for China (CHN). 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 X820XXS7CZB5 https://samfirm.shop/build/X820XXS7CZB5, Android and the bootloader binary are unchanged, so you can switch between the two in both directions. A newer build for SM-X820 is available: X820XXSBDZI2 https://samfirm.shop/build/X820XXSBDZI2.

OS updates guaranteed until: Android 22. Security updates until: Oct 26, 2031
9.2/10 (98)466 times
Android 16
OS Version
2026-05-18
Build Date
2026-02-05
Security patch
1
Countries
1
CSC codes
7
Bootloader binary

Bootloader binary 7. Flashing firmware with a lower binary is usually blocked by Samsung anti-rollback.

Newer builds of Samsung Galaxy Tab S10+ use bootloader binary B (11) (latest: X820XXSBDZI2 https://samfirm.shop/build/X820XXSBDZI2). If your device already runs binary B (11), 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: X820ZCU7DZE3
    ModelRegionCSC VersionRelease dateSizeFile nameDownload
    SM-X820
    CHN China
    X820CHN7DZE3 2026-06-04 10.309 GiB
    SM-X820_3_20260518085310_s5h0ym7sl4_fac.zip

    No matching downloads

    How to flash X820ZCU7DZE3

    • X820ZCU7DZE3 has bootloader binary 7. Your device must run binary 7 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.

    What's new in X820ZCU7DZE3

    One UI 8.5
    Visual design

    Fresh new look
    One UI seamlessly integrates into your daily routine by combining immersive visuals with meaningful personalization for a more refined and sophisticated design. Transparent blur effects add depth and make content easier to navigate, while floating elements react organically to your workflow for a more focused experience. Through familiar and intuitive data visualization, One UI delivers a design that feels both personal and relatable, helping you focus on what matters.

    Galaxy AI

    Edit images with text prompts
    Image editing has never been easier. Just describe how you want your image to change. You can change the color of someone’s clothes, add something to an empty table, or anything else you can think of.

    Add items from one image to another
    Photo assist makes it easy to combine elements from different images. Take an object from one picture and add it to a different picture. Galaxy AI smooths it out and makes it look natural.

    Add style to any photo
    You can now apply fun styles to any photo with Photo assist, not just pictures of people or pets. In thumbnail view, you can touch and hold to reorder your styles and put your favorites near the front.

    Continuous image generation
    Keep creating without stopping. Photo Assist now lets you generate AI images using different features from the results screen without saving each iteration. When you’re done, you can review all your creations in your history and pick your favorites.

    Create images with Creative Studio
    You can use creative studio to create custom wallpapers, unique stickers, and personalized profile images that you can use throughout on your tablet.

    Now brief on the Lock screen
    Get more personalized suggestions on your Lock screen. Now brief will show useful information based on your context.

    Enhanced AI select
    Start AI select instantly by touching and holding the edge handle.

    Auto language detection in Interpreter
    Keep the conversation flowing. After you choose which languages to translate, Interpreter will detect when each one is being spoken so you don’t need to press the Microphone button each time someone talks.

    Bixby

    Smarter device control
    Talk to Bixby in your own words. Bixby is now better at finding the setting or feature you need, even if you don’t use exact commands or feature names. Just say what you need and let Bixby do the rest.

    Ask anything, anytime
    Whether you need a quick answer or detailed information, just ask Bixby for an instant response. There's no need to spend time on multiple searches or switching between apps.

    Conversation history
    Looking back at past conversations with Bixby is easier than ever. You can now access your conversation history from the side panel in the Bixby app.

    Home and Lock screens

    New downloadable wallpapers
    Discover new wallpapers featuring interactive elements. Wallpapers are downloadable so they don’t use up your storage space when not in use.

    More customizable clock fonts
    Personalize your Lock screen clock. You can now adjust the thickness of more font styles to match your preferred look.

    Clock

    Weather alarm backgrounds
    Wake up to an alarm that gets you ready for the day’s weather. Your alarm screen can now show the current weather conditions as a background when it rings.

    Time zone converter
    Compare time zones at a glance. The new slider in the Clock app makes it easy to check the time difference between places around the world.

    Connectivity

    Storage Share
    Access your files anywhere. Files from your other Samsung phones, tablets, and PCs are available in the My Files app on your tablet. You can also access your tablet's files on other Samsung devices, even your TV.

    Family device sharing
    Easily connect and share files, screens, cameras, storage and more with your family. Family device sharing lets you use features like S Share, Camera Share, Storage Share, Auto Hotspot, and Multi control with Galaxy devices that belong to your family members.

    Quickly connect to Smart View devices
    Connect to your favorite display faster. You can now add a shortcut on your Home screen to instantly mirror your tablet’s screen to a TV or other display device.

    Enhanced Auracast features
    It’s easier than ever to listen to and broadcast sound with Auracast. Options for both broadcasting and listening are now located in the Audio broadcast menu in Settings.

    S Share

    Photo sharing suggestions
    Share photos with the right people faster. When you share pictures that include friends or family, S Share can recognize who’s in them and suggest sharing directly with those people.

    Battery and power

    Revamped battery info
    See your battery use more clearly. The redesigned Battery settings screen makes it easier to check remaining time, charging status, and daily usage over the past week.

    Improved Power saving
    Use Power saving to make your battery last longer without charging. Choose Standard for moderate savings and customizable limits, or choose Maximum to turn off all non-essential features and make your battery last as long as possible.

    Security and privacy

    Privacy alerts
    Stay informed about your privacy. You’ll now get alerts when an app’s permissions could put your personal data at risk along with suggestions for what you can do about it.

    Turn off Auto blocker temporarily
    If you need to temporarily disable Auto blocker's security protection, a new option lets you turn it on automatically 30 minutes later so you don't forget.

    Accessibility

    Dwell action and Corner actions
    The Auto action after pointer stops feature has been divided into 2 features. Dwell action lets you set custom actions when your mouse stops moving for a certain amount of time. Corner actions let you set a different action for each corner of the screen.

    Dim strobing in videos
    A new setting lets you dim strobing effects in videos for more comfortable viewing.

    Even more improvements

    More customizable quick panel
    Arrange your quick settings just the way you like them. You can now add, remove, reorder, and reorganize controls in the quick panel.

    Customize Calendar countdown widgets
    Make your countdown widgets look just the way you like. Use Creative studio to generate a background image, choose an image from Gallery, or go with a solid color.

    Early alerts for reminders
    Get alerts before reminders are due to make sure you don’t forget important tasks. You can choose how far in advance to get an alert for each reminder.

    Insert tables in Samsung Notes
    Organize information in your notes with tables. You can adjust column widths, colors, and border designs while the auto calculation feature helps you stay productive and save time.

    Partial screen recording
    Include only what you need in your screen recordings. You can now select only the part of the screen that you want to record.

    Calculator nudges
    Save time on calculations. Numbers and formulas copied to your clipboard will be suggested when you open Calculator so you can enter them with a quick tap.

    Security patch: February 2026

    SMR Feb-2026 fixes 32 vulnerabilities, 0 of them critical. Android Security Bulletin: 25, Samsung-specific issues (SVE): 7.

    Most severe Samsung fixes:

    • high Improper access control in Emergency Sharing prior to SMR Feb-2026 Release 1 allows local attackers to interrupt its functioning. (CVE-2026-20977)
    • high Improper export of android application components in Samsung Dialer prior to SMR Feb-2026 Release 1 allows local attackers to launch arbitrary activity with Samsung Dialer privilege. (CVE-2026-20983)
    • high Improper authorization in KnoxGuardManager prior to SMR Feb-2026 Release 1 allows local attackers to bypass the persistence configuration of the application. (CVE-2026-20978)

    All fixes and Galaxy models with this patch

    Device specifications

    • Display diagonal31.5 cm (12.4")
    • Display resolution2800 x 1752 pixels
    • Rear camera resolution13 MP
    • Rear camera typeDual camera
    • Front camera resolution12 MP
    • Wi-Fi standardWi-Fi 6E (802.11ax)
    • Weight571 g

    Specifications of SM-X820N, a regional variant of the same device. Chipset and SIM lines are left out: they can differ by region.

    Frequently Asked Questions

    X820ZCU7DZE3 is Android 16 firmware for Samsung Galaxy Tab S10+, released for China (CHN). It includes the 2026-02-05 security patch. Samsung built it on 2026-05-18.

    SMR Feb-2026 fixes 32 vulnerabilities, 0 of them critical. Android Security Bulletin: 25, Samsung-specific issues (SVE): 7.

    No. A newer build for SM-X820 is available: X820XXSBDZI2. Install it instead of X820ZCU7DZE3 unless you need this exact version. The previous build was X820XXS7CZB5.

    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 10.309 GiB; keep about twice that free on the computer to unzip it. The Samsung Galaxy Tab S10+ must be on bootloader binary 7 or lower.

    This build uses bootloader binary 7. It can be flashed on a Samsung Galaxy Tab S10+ running binary 7 or lower; if the device already has a higher binary, Odin stops with "SW REV CHECK FAIL". 3 other builds of this model use the same binary, so you can switch between them in both directions.

    Other builds and changelog for Samsung Galaxy Tab S10+

    https://samfirm.shop/build/X820XXSBDZI2

    • Security
    The device is protected with improved security.

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

    https://samfirm.shop/build/X820XXU7DZE3
    One UI 8.5
    Visual design

    Fresh new look
    One UI seamlessly integrates into your daily routine by combining immersive visuals with meaningful personalization for a more refined and sophisticated design. Transparent blur effects add depth and make content easier to navigate, while floating elements react organically to your workflow for a more focused experience. Through familiar and intuitive data visualization, One UI delivers a design that feels both personal and relatable, helping you focus...

    https://samfirm.shop/build/X820XXS7CZB5

    • Security
    The device is protected with improved security.

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

    https://samfirm.shop/build/X820XXU4CYJ4

    • Stability and reliability
    Device behavior has been improved.

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

    https://samfirm.shop/build/X820XXU4CYI5
    One UI 8.0 (Android 16)
    Galaxy AI

    Create unique pet portraits
    Bring out your pet's personality with Portrait studio. You can now apply portrait effects to pictures of dogs and cats in addition to people. Choose from styles like Fisheye lens, oil painting, and more.

    Clean up sound
    Use Audio eraser to automatically reduce the volume of wind and other background noises so you can focus on who's talking. Audio eraser can be used in Gallery, Video Player, Samsung Notes, Voice Recorder, and Phone...

    Show 2 older builds

    • Stability and reliability
    Device behavior has been improved.
    • Security
    The device is protected with improved security.

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

    • Security
    The device is protected with improved security.

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