Samsung Galaxy Tab S8 Ultra X900ZCUBEZJ3
SM-X900 1 country Android 16

Samsung Galaxy Tab S8 Ultra X900ZCUBEZJ3 Firmware

Build Date:

Samsung Galaxy Tab S8 Ultra X900ZCUBEZJ3 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 X900OPSBEZH3, Android and the bootloader binary are unchanged, so you can switch between the two in both directions. A newer build for SM-X900 is available: X900OPUBEZJ3.

OS updates guaranteed until: Android 16Security updates until: Feb 10, 2027
Download firmware
8.8 (30)206 times
Android 16
OS Version
2026-10-21
Build Date
2026-08-05
Security patch
1
Countries
1
CSC codes
B (11)
Bootloader binary

Bootloader binary B (11). Flashing firmware with a lower binary is usually blocked by Samsung anti-rollback.

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: X900ZCUBEZJ3
    ModelRegionCSC VersionRelease dateSizeFile nameDownload
    SM-X900
    CHN China
    		X900CHNBEZJ3 2026-11-10 8.367 GiB
    SM-X900_5_20261021112111_pr1doak1bp_fac.zip
    		Download

    No matching downloads

    How to flash X900ZCUBEZJ3

    • X900ZCUBEZJ3 has bootloader binary B (11). Your device must run binary B (11) 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 X900ZCUBEZJ3

    • 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 patch: August 2026

    SMR Aug-2026 fixes 54 vulnerabilities, 8 of them critical. Android Security Bulletin: 38, Samsung-specific issues (SVE): 16.

    Most severe Samsung fixes:

    • high Improper access control in Weaver prior to SMR Aug-2026 Release 1 allows local attackers to cause device inoperability. (CVE-2026-21064)
    • high Improper input validation in Galaxy Themes prior to SMR Aug-2026 Release 1 allows physical attackers to launch arbitrary activity. (CVE-2026-21073)

    All fixes and Galaxy models with this patch

    Device specifications

    • Display diagonal37.1 cm (14.6")
    • Display resolution2960 x 1848 pixels
    • Display technologyOLED
    • Processor frequency2.4 GHz
    • Processor familySnapdragon
    • Processor modelSM8450
    • Rear camera resolution13 MP
    • Rear camera typeDual camera
    • Front camera resolution12 MP
    • Wi-Fi standardWi-Fi 6 (802.11ax)
    • Weight726 g

    Frequently Asked Questions

    X900ZCUBEZJ3 is Android 16 firmware for Samsung Galaxy Tab S8 Ultra, released for China (CHN). It includes the 2026-08-05 security patch. Samsung built it on 2026-10-21.

    SMR Aug-2026 fixes 54 vulnerabilities, 8 of them critical. Android Security Bulletin: 38, Samsung-specific issues (SVE): 16.

    No. A newer build for SM-X900 is available: X900OPUBEZJ3. Install it instead of X900ZCUBEZJ3 unless you need this exact version. The previous build was X900OPSBEZH3.

    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 8.367 GiB; keep about twice that free on the computer to unzip it. The Samsung Galaxy Tab S8 Ultra must be on bootloader binary B (11) or lower.

    This build uses bootloader binary B (11). It can be flashed on a Samsung Galaxy Tab S8 Ultra running binary B (11) or lower; if the device already has a higher binary, Odin stops with "SW REV CHECK FAIL". 8 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 S8 Ultra

    · Device stability improvements, bug fixes.
    · New and / or enhanced features.
    · Further improvements to performance.

    • 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.

    One UI 8.0 (Android 16)
    Personalization

    Enhanced Lock screen widgets
    Do more on your Lock screen with brief widgets. 2 x 2 size widgets are now available, and the widget area is now larger so you can add even more widgets. You can choose either a horizontal or vertical widget layout.

    Productivity

    Check stock prices without unlocking
    Stocks you follow on Google Finance with big price changes will appear on your Now bar at the end of the trading day.

    Easier file sharing with Quick Share
    I...

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