Samsung Galaxy F56 5G E566BXXS4BYK2
SM-E566B 1 country Android 16

Samsung Galaxy F56 5G E566BXXS4BYK2 Firmware

Samsung Galaxy F56 5G E566BXXS4BYK2 is an Android 16 firmware for India (INS). 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 E566BXXU3BYI6: bootloader binary raised from 3 to 4, so after installing it there is no way back to older builds; security patch 2025-11-01 instead of 2025-09-01. A newer build for SM-E566B is available: E566BXXS7CZI1.

9.0/10 (31)180 times
Android 16
OS Version
2025-11-12
Build Date
2025-11-01
Security patch
1
Countries
1
CSC codes
4
Bootloader binary

Bootloader binary 4. Flashing firmware with a lower binary is usually blocked by Samsung anti-rollback.

Newer builds of Samsung Galaxy F56 5G use bootloader binary 7 (latest: E566BXXS7CZI1). If your device already runs binary 7, 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: E566BXXS4BYK2
    ModelRegionCSC VersionRelease dateSizeFile nameDownload
    SM-E566B
    INS India
    		E566BODM4BYK2 2025-11-25 9.14 GiB
    SM-E566B_2_20251112092711_zas5t3nwtz_fac.zip

    No matching downloads

    What's new in E566BXXS4BYK2

    • Security
    The device is protected with improved security.

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

    How to flash E566BXXS4BYK2

    • E566BXXS4BYK2 has bootloader binary 4. Your device must run binary 4 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.

    Frequently Asked Questions

    E566BXXS4BYK2 is Android 16 firmware for Samsung Galaxy F56 5G, released for India (INS). It includes the 2025-11-01 security patch. Samsung built it on 2025-11-12.

    No. A newer build for SM-E566B is available: E566BXXS7CZI1. Install it instead of E566BXXS4BYK2 unless you need this exact version. The previous build was E566BXXU3BYI6.

    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 9.14 GiB; keep about twice that free on the computer to unzip it. The Samsung Galaxy F56 5G must be on bootloader binary 4 or lower.

    This build uses bootloader binary 4. It can be flashed on a Samsung Galaxy F56 5G running binary 4 or lower; if the device already has a higher binary, Odin stops with "SW REV CHECK FAIL". No other build of this model uses binary 4.

    Other builds and changelog for Samsung Galaxy F56 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.

    • 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.

    • 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 4 older builds
    One UI 8.0 (Android 16)
    Personalization

    Beautiful new wallpapers
    More choices are available to help you find the wallpaper that's right for you. New additions include interactive and dynamic wallpapers like color gradients that change over time.

    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 recei...

    • Security
    The device is protected with improved security.

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

    • 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.

    No changelog details available.
    Model firmware by region