Samsung Galaxy A26 5G S266VUDS2AYC1
SM-S266V 2 countries Android 15

Samsung Galaxy A26 5G S266VUDS2AYC1 Firmware

Samsung Galaxy A26 5G S266VUDS2AYC1 is an Android 15 firmware for TFV, United States (TFN). It is the same firmware configured per region and carrier (CSC). Find your country below, verify the file and download for free. A newer build for SM-S266V is available: S266VUDSACZH3.

OS updates guaranteed until: Android 21Security updates until: Mar 31, 2031
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Android 15
OS Version
2025-04-03
Build Date
2025-04-01
Security patch
2
Countries
2
CSC codes
2
Bootloader binary

Bootloader binary 2. Flashing firmware with a lower binary is usually blocked by Samsung anti-rollback.

Newer builds of Samsung Galaxy A26 5G use bootloader binary A (10) (latest: S266VUDSACZH3). If your device already runs binary A (10), 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: S266VUDS2AYC1
    ModelRegionCSC VersionRelease dateSizeFile nameDownload
    SM-S266V
    TFN United States
    TFV
    		S266VTFN2AYC1 2025-04-17 7.175 GiB
    SM-S266V_1_20250403205531_a3ha2m38oe_fac.zip
    		Download

    No matching downloads

    How to flash S266VUDS2AYC1

    • S266VUDS2AYC1 has bootloader binary 2. Your device must run binary 2 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 S266VUDS2AYC1

    • Security
    The device is protected with improved security.

    Security patch: April 2025

    SMR Apr-2025 fixes 53 vulnerabilities, 6 of them critical. Android Security Bulletin: 37, Samsung-specific issues (SVE): 16.

    Most severe Samsung fixes:

    • critical Improper access control in HDCP trustlet (CVE-2025-20936)
    • critical Out-of-bounds write in libimagecodec.quram.so (CVE-2025-21042)
    • high Improper handling of insufficient permission or privileges in ClipboardService (CVE-2025-20935)

    All fixes and Galaxy models with this patch

    Rollout of S266VUDS2AYC1 by region

    Samsung released this build in all regions (2) on the same day, April 17, 2025.

    Frequently Asked Questions

    S266VUDS2AYC1 is Android 15 firmware for Samsung Galaxy A26 5G, released for TFV, United States (TFN). It includes the 2025-04-01 security patch. Samsung built it on 2025-04-03.

    SMR Apr-2025 fixes 53 vulnerabilities, 6 of them critical. Android Security Bulletin: 37, Samsung-specific issues (SVE): 16.

    No. A newer build for SM-S266V is available: S266VUDSACZH3. Install it instead of S266VUDS2AYC1 unless you need this exact version.

    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 7.175 GiB; keep about twice that free on the computer to unzip it. The Samsung Galaxy A26 5G must be on bootloader binary 2 or lower.

    This build uses bootloader binary 2. It can be flashed on a Samsung Galaxy A26 5G running binary 2 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 Galaxy A26 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)
    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 o...

    • 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

    • Press and hold the Side button to access Google Gemini
    The Side button is a new way to access Google Gemini or other digital assistant app quickly instead of using the corner swipe. You can change what the Side button does in Settings.
    • Complete multiple tasks with one ask
    Google Gemini is now seamlessly integrated with Samsung apps such as Calendar, Notes, Reminder, and Clock. You can complete tasks in these apps using information from Gemini with one simple command. Try asking Google Gemini...

    • Security
    The device is protected with improved security.

    Model firmware by region