SM-W9026 1 country Android 16

Samsung W26 W9026ZCU3AYK9 Firmware

Samsung W26 W9026ZCU3AYK9 is an Android 16 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 W9026ZCS2AYJ3: bootloader binary raised from 2 to 3, so after installing it there is no way back to older builds; security patch 2025-11-01 instead of 2025-08-01. A newer build for SM-W9026 is available: W9026ZCS9BZI1.

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Android 16
OS Version
2025-11-12
Build Date
2025-11-01
Security patch
1
Countries
1
CSC codes
3
Bootloader binary

Bootloader binary 3. Flashing firmware with a lower binary is usually blocked by Samsung anti-rollback.

Newer builds of Samsung W26 use bootloader binary 9 (latest: W9026ZCS9BZI1). If your device already runs binary 9, 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: W9026ZCU3AYK5
    ModelRegionCSC VersionRelease dateSizeFile nameDownload
    SM-W9026
    CHC China
    		W9026CTC3AYK9 2025-11-24 17.405 GiB
    SM-W9026_1_20251112215041_ze7z4ueub0_fac.zip
    		Download

    No matching downloads

    How to flash W9026ZCU3AYK9

    • W9026ZCU3AYK9 has bootloader binary 3. Your device must run binary 3 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 W9026ZCU3AYK9

    • 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: November 2025

    SMR Nov-2025 fixes 33 vulnerabilities, 2 of them critical. Android Security Bulletin: 24, Samsung Semiconductor: 5, Samsung-specific issues (SVE): 4.

    Most severe Samsung fixes:

    • high Out-of-bounds write in handling opcode in fingerprint trustlet (CVE-2025-21071)
    • high Out-of-bounds read in libimagecodec.quram.so (CVE-2025-21074)
    • high Out-of-bounds write in libimagecodec.quram.so (CVE-2025-21075)

    All fixes and Galaxy models with this patch

    Frequently Asked Questions

    W9026ZCU3AYK9 is Android 16 firmware for Samsung W26, released for China (CHC). It includes the 2025-11-01 security patch. Samsung built it on 2025-11-12.

    SMR Nov-2025 fixes 33 vulnerabilities, 2 of them critical. Android Security Bulletin: 24, Samsung Semiconductor: 5, Samsung-specific issues (SVE): 4.

    No. A newer build for SM-W9026 is available: W9026ZCS9BZI1. Install it instead of W9026ZCU3AYK9 unless you need this exact version. The previous build was W9026ZCS2AYJ3.

    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 17.405 GiB; keep about twice that free on the computer to unzip it. The Samsung W26 must be on bootloader binary 3 or lower.

    This build uses bootloader binary 3. It can be flashed on a Samsung W26 running binary 3 or lower; if the device already has a higher binary, Odin stops with "SW REV CHECK FAIL". 1 other build of this model uses the same binary, so you can switch between them in both directions.

    Other builds and changelog for Samsung W26

    • Security
    The device is protected with improved security.

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

    • 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.

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    • 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 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.

    Model firmware by region