Samsung Galaxy Tab A11 LTE X133DXU1BYK3

Samsung Galaxy Tab A11 LTE X133DXU1BYK3 Firmware

Samsung Galaxy Tab A11 LTE X133DXU1BYK3 is an Android 16 firmware for 11 countries, 11 CSC codes. 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 X133DXU1AYHA https://samfirm.shop/build/X133DXU1AYHA: Android updated from Android 15 to Android 16; security patch 2025-10-01 instead of 2025-08-01. A newer build for SM-X133 is available: X133DXS5BZI5 https://samfirm.shop/build/X133DXS5BZI5.

OS updates guaranteed until: Android 22. Security updates until: Sep 26, 2032
9.0/10 (26)2,644 times
Android 16
OS Version
2025-11-10
First release
other regions until 2025-11-19
2025-10-01
Security patch
11
Countries
11
CSC codes
1
Bootloader binary

Bootloader binary 1. Flashing firmware with a lower binary is usually blocked by Samsung anti-rollback.

Newer builds of Samsung Galaxy Tab A11 LTE use bootloader binary 5 (latest: X133DXS5BZI5 https://samfirm.shop/build/X133DXS5BZI5). If your device already runs binary 5, 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#.
    Your CSC is in Settings → About phone (About tablet) → Software information, or dial *#1234#. The CSC sets your region's features and network bands. Download the firmware for your country.
    8
    MODEM/CP Version: X133DXU1BYK3
    ModelRegionCSC VersionBuild DateRelease dateSizeFile nameDownload
    SM-X133
    BRI Taiwan
    TGY Hong Kong SAR China
    X133OZS1BYK3 2025-11-11 2025-11-20 5.67 GiB
    SM-X133_1_20251111143831_twu1us5cnf_fac.zip
    SM-X133
    EGY Egypt
    XSG United Arab Emirates
    X133OJM1BYK3 2025-11-11 2025-11-19 5.709 GiB
    SM-X133_1_20251111110532_zufd77l6ao_fac.zip
    SM-X133
    KOO South Korea
    X133KOO1BYK3 2025-11-11 2025-11-13 5.695 GiB
    SM-X133_1_20251111094641_5zifrrhent_fac.zip
    SM-X133
    MXO Mexico
    ZTO Brazil
    ZBR
    X133OWO1BYK3 2025-11-13 2025-11-25 5.733 GiB
    SM-X133_1_20251113052840_ijv1xvm4pa_fac.zip
    SM-X133
    XID Indonesia
    X133OLE1BYK3 2025-11-12 2025-11-24 5.718 GiB
    SM-X133_1_20251112080041_l4482v57je_fac.zip
    SM-X133
    XJP Japan
    X133XJP1BYK3 2025-11-11 2025-11-19 5.724 GiB
    SM-X133_1_20251111184601_uj7ff2uf2z_fac.zip
    SM-X133
    XSP Singapore
    X133OLM1BYK3 2025-11-10 2025-11-18 5.709 GiB
    SM-X133_1_20251110190621_4074462ot4_fac.zip
    SM-X133
    ZBR
    X133OWO1BYK4 2025-11-19 2025-12-05 5.733 GiB
    SM-X133_1_20251119033711_q6563k2bsv_fac.zip

    No matching downloads

    How to flash X133DXU1BYK3

    • X133DXU1BYK3 has bootloader binary 1. Your device must run binary 1 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 X133DXU1BYK3

    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
    It's never been easier to send and receive files. Tap the Quick Share button in quick settings to get started. You can receive files while the Quick Share screen is open and send files to others directly from Quick Share.

    Sticky notes
    Add quick annotations on top of documents in Samsung Notes. There's no limit to the number of sticky notes you can add, and it's easy to remove them later without disturbing the original document.

    Find downloads fast
    You can now filter files based on the app that was used to download them. Works in the Downloaded and Recent views in My Files.

    Multi-pane file browsing
    It's easier to keep track of file paths when using My Files on a large screen. When you open a new folder, a new pane will be opened to show what's inside so you can easily get back to where you came from.

    Redesigned Samsung Internet
    Access the features you need quickly. The Samsung Internet menu has been optimized to make it easy to access the features you use most. You can also customize the layout to match your personal preferences.

    Multitasking

    Enhanced split screen view
    While 2 apps are open in split screen view, you can push one app against the edge of the screen to keep it partially visible while giving most of your focus to the other app. Tap the smaller app any time to switch between them quickly.

    Calendar

    Manage reminders in Calendar
    You can easily create reminders in the Calendar app without opening the Reminder app. Whenever you tap the + button, you'll have the choice of adding an event or a reminder. You can also drag and drop reminders on your calendar to reschedule them.

    Add events quickly
    When you start adding an event in the quick add menu, you'll get suggestions for event names and times based on your past events. Just tap one of the suggestions to add an event without additional typing.

    Samsung Health

    Bedtime guidance
    Get to sleep at the right time so you wake up feeling refreshed. The new Bedtime guidance feature analyzes your sleep data and recommends the best time to go to sleep each night.

    Running challenges
    In addition to step challenges, you can now challenge your friends to run. You can set a target distance and see who gets there the fastest or set a time limit and see who runs the farthest.

    Food recording reminders
    Stay on track to meet your calorie goals. You can now set reminders for recording your food intake in Samsung Health.

    Photo and video

    Swipe up or down to open quick controls
    Access quick controls in Camera even quicker than before by swiping up or down anywhere in the preview area. In Camera settings, change the Swipe up/down option to open quick controls.

    Audio enhancements

    Quick access to Galaxy Buds settings
    It's easier than ever before to control your Galaxy Buds. You can now adjust Buds settings directly from your tablet's Settings without the need to open the Galaxy Wearable app.

    Security and privacy

    Enhanced Secure Folder
    Keep sensitive apps and data in a separate, protected area of your tablet. You can now set Secure Folder to close apps and prevent notifications when you lock it. You can also completely hide and encrypt your Secure Folder for maximum protection.

    Show or hide notification content while locked
    The option to show or hide notification content while your tablet is locked is now located in Notifications settings. Choose to show content for quick access to notifications without unlocking your tablet, or choose to hide content to keep your notifications private and prevent others from seeing them.

    Accessibility

    Pinch and zoom with the Assistant menu
    The Assistant menu now provides more ways to zoom in and out on the screen. In addition to dragging with one finger, you can now adjust the zoom level by pressing buttons on the screen.

    Control mouse actions with your keyboard
    If you can't or don't want to use a mouse, turn on Mouse keys in Accessibility settings to use your physical keyboard to move the mouse pointer, click, hold, and scroll.

    Magnify your keyboard
    You can now make the keys on the on-screen keyboard larger so they're easier to see and tap. Turn on Magnify keyboard while typing in Magnification settings to try it.

    Modes and routines

    New preset routines
    Check out the new preset routines for weather and other advanced conditions. Use them as they are, or customize them to meet your needs.

    New routine actions
    New actions are available for getting data from the Clock, Calendar, and Samsung Notes apps. After you get data, you can use it in other conditions or actions in your routine.

    Even more improvements

    Easily organize alarms
    You can now add existing alarms to an alarm group by tapping the + button on the Alarm group screen. You can also add an alarm group to a widget on your Home screen so you can turn all of the alarms in the group on or off with a single tap.

    Enhanced app notification settings
    You can now choose the pop-up notification style for each app separately in the app’s notification settings.

    Revamped weather visuals
    The Weather app now provides more rich and realistic images to help you intuitively understand the current weather conditions.

    Security patch: October 2025

    SMR Oct-2025 fixes 25 vulnerabilities, 0 of them critical. Android Security Bulletin: 13, Samsung-specific issues (SVE): 12.

    Most severe Samsung fixes:

    • high Out-of-bounds write in fingerprint trustlet (CVE-2025-21044)
    • high Improper input validation in Contacts (CVE-2025-21050)
    • high Relative path traversal in Knox Enterprise (CVE-2025-21048)

    All fixes and Galaxy models with this patch

    Rollout of X133DXU1BYK3 by region

    First release
    November 13, 2025
    Last region
    November 25, 2025
    Duration
    13 days
    Regions
    11
    1. Day 1 · · 1 region
      South KoreaKOO
    2. Day 6 · · 1 region
      SingaporeXSP
    3. Day 7 · · 3 regions
      EgyptEGYJapanXJPUnited Arab EmiratesXSG
    4. Day 8 · · 2 regions
      Hong Kong SAR ChinaTGYTaiwanBRI
    5. Day 12 · · 1 region
      IndonesiaXID
    6. Day 13 · · 3 regions
      BrazilZTOMexicoMXOZBR

    Frequently Asked Questions

    X133DXU1BYK3 is Android 16 firmware for Samsung Galaxy Tab A11 LTE, released for 11 countries, 11 CSC codes. It includes the 2025-10-01 security patch. Samsung built it on 2025-11-10.

    SMR Oct-2025 fixes 25 vulnerabilities, 0 of them critical. Android Security Bulletin: 13, Samsung-specific issues (SVE): 12.

    No. A newer build for SM-X133 is available: X133DXS5BZI5. Install it instead of X133DXU1BYK3 unless you need this exact version. The previous build was X133DXU1AYHA.

    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 Samsung Galaxy Tab A11 LTE must be on bootloader binary 1 or lower.

    This build uses bootloader binary 1. It can be flashed on a Samsung Galaxy Tab A11 LTE running binary 1 or lower; if the device already has a higher binary, Odin stops with "SW REV CHECK FAIL". 2 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 A11 LTE

    No changelog details available.
    https://samfirm.shop/build/X133DXS5BZI4

    • Security
    The device is protected with improved security.

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

    No changelog details available.
    https://samfirm.shop/build/X133DXU4BZH2

    • Stability and reliability
    Device behavior has been improved.

    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.

    Show 13 older builds
    No changelog details available.
    https://samfirm.shop/build/X133DXS4BZG6

    • Security
    The device is protected with improved security.

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

    No changelog details available.
    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...

    No changelog details available.
    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/X133DXS4BZB8

    • Security
    The device is protected with improved security.

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