Samsung Galaxy M55 5G M556EXXS4BYH2
SM-M556E 2 countries Android 15

Samsung Galaxy M55 5G M556EXXS4BYH2 Firmware

Samsung Galaxy M55 5G M556EXXS4BYH2 is an Android 15 firmware for Europe (EUX), Kazakhstan (CAU). 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 M556EXXU4BYE7: security patch 2025-08-01 instead of 2025-05-01. A newer build for SM-M556E is available: M556EXXS5DZH1.

8.7/10 (33)523 times
Android 15
OS Version
2025-08-06
Build Date
2025-08-01
Security patch
2
Countries
2
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 M55 5G use bootloader binary 5 (latest: M556EXXS5DZH1). 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#.
    MODEM/CP Version: M556EXXS4BYH2
    ModelRegionCSC VersionRelease dateSizeFile nameDownload
    SM-M556E
    CAU Kazakhstan
    EUX Europe
    		M556EOXM4BYH2 2025-08-28 7.836 GiB
    SM-M556E_2_20250806161211_n92gp8dztj_fac.zip

    No matching downloads

    What's new in M556EXXS4BYH2

    • 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 M556EXXS4BYH2

    • M556EXXS4BYH2 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

    M556EXXS4BYH2 is Android 15 firmware for Samsung Galaxy M55 5G, released for Europe (EUX), Kazakhstan (CAU). It includes the 2025-08-01 security patch. Samsung built it on 2025-08-06.

    No. A newer build for SM-M556E is available: M556EXXS5DZH1. Install it instead of M556EXXS4BYH2 unless you need this exact version. The previous build was M556EXXU4BYE7.

    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 7.836 GiB; keep about twice that free on the computer to unzip it. The Samsung Galaxy M55 5G must be on bootloader binary 4 or lower.

    This build uses bootloader binary 4. It can be flashed on a Samsung Galaxy M55 5G running binary 4 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 M55 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.

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    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.

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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.

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

    No changelog details available.

    • Security
    The device is protected with improved security.

    Model firmware by region