SM-X818U 2 countries Android 16

Samsung Galaxy Tab S9+ 5G X818USQS7EZI2 Firmware

Samsung Galaxy Tab S9+ 5G X818USQS7EZI2 is an Android 16 firmware for CHA, United States (ATT, USC, VZW). 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 X818USQS7EZH3: security patch 2026-09-05 instead of 2026-08-05. This is the newest build for SM-X818U.

OS updates guaranteed until: Android 17Security updates until: Jul 1, 2028
Download firmware
9.2/10 (41)1,344 times
Android 16
OS Version
2026-09-12
Build Date
2026-09-05
Security patch
2
Countries
4
CSC codes
7
Bootloader binary

Bootloader binary 7. 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: X818USQS7EZI2
    ModelRegionCSC VersionRelease dateSizeFile nameDownload
    SM-X818U
    ATT, USC, VZW United States
    CHA
    		X818UOYN7EZI2 2026-09-28 10.314 GiB
    SM-X818U_5_20260912113530_0bvnq2d90j_fac.zip
    		Download

    No matching downloads

    How to flash X818USQS7EZI2

    • X818USQS7EZI2 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 X818USQS7EZI2

    • 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: September 2026

    SMR Sep-2026 fixes 80 vulnerabilities, 20 of them critical. Android Security Bulletin: 58, Samsung Semiconductor: 1, Samsung-specific issues (SVE): 21.

    Most severe Samsung fixes:

    • critical Heap-based buffer overflow in DNG decoder of libimagecodec.quram.so prior to SMR Sep-2026 Release 1 allows remote attackers to execute arbitrary code. (CVE-2026-21095)
    • critical Heap-based buffer overflow in JPEG decoder of libimagecodec.quram.so prior to SMR Sep-2026 Release 1 allows remote attackers to execute arbitrary code. (CVE-2026-21096)
    • high Out-of-bounds write in libmdnie.so prior to SMR Sep-2026 Release 1 allows local attackers to execute arbitrary code with system server privilege. (CVE-2026-21087)

    All fixes and Galaxy models with this patch

    Rollout of X818USQS7EZI2 by region

    First release
    September 28, 2026
    Last region
    September 29, 2026
    Duration
    2 days
    Regions
    4
    1. Day 1 · · 2 regions
      United StatesUSCCHA
    2. Day 2 · · 2 regions
      United StatesATTVZW

    Frequently Asked Questions

    X818USQS7EZI2 is Android 16 firmware for Samsung Galaxy Tab S9+ 5G, released for CHA, United States (ATT, USC, VZW). It includes the 2026-09-05 security patch. Samsung built it on 2026-09-12.

    SMR Sep-2026 fixes 80 vulnerabilities, 20 of them critical. Android Security Bulletin: 58, Samsung Semiconductor: 1, Samsung-specific issues (SVE): 21.

    Yes. X818USQS7EZI2 is the newest build for SM-X818U on SamFirm. The previous build was X818USQS7EZH3.

    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 10.314 GiB; keep about twice that free on the computer to unzip it. The Samsung Galaxy Tab S9+ 5G must be on bootloader binary 7 or lower.

    This build uses bootloader binary 7. It can be flashed on a Samsung Galaxy Tab S9+ 5G running binary 7 or lower; if the device already has a higher binary, Odin stops with "SW REV CHECK FAIL". 6 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 S9+ 5G

    • 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 8.5
    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...

    • 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)
    Galaxy AI

    See calls on the screen
    Call captions show what each person says on the screen in real time during calls. Follow the conversation on your screen to make sure you don’t miss anything.

    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.

    Translate emergency alerts
    Never miss importa...

    • 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 8 older builds
    One UI 7.0 Upgrade (Android 15)
    Galaxy AI

    Write like a pro
    Let Galaxy AI help you with writing tasks by tapping the 4-star icon that appears whenever you select text. You can correct spelling and grammar, change tone, summarize, or apply formatting. You can even start with a short snippet and let the AI do the writing for you.

    Transcribe and summarize recorded calls
    It's easier than ever to review the content of your recorded calls in the Samsung Phone app. You can view the entire conversat...

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

    • Security
    The device is protected with improved security.

    One UI 6.1.1 Update
    Galaxy AI

    Turn simple sketches into awesome images
    Start with a simple drawing, choose your style, and let Galaxy AI transform it into a captivating work of art. Sketch to image is available in Samsung Notes, Photo Editor, Air command, Smart select, and the Edge panels.

    Create unique portraits
    With a wide variety of AI-generated portrait styles, you can create a whole new look for your own profile image in Contacts or someone else’s, or use Photo Editor to invent somethi...

    • Security
    The device is protected with improved security.

    Model firmware by region