Samsung Galaxy M55 5G M556EXXS5DZF2
SM-M556E 2 countries Android 16

Samsung Galaxy M55 5G M556EXXS5DZF2 Firmware

Samsung Galaxy M55 5G M556EXXS5DZF2 is an Android 16 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 M556EXXU5DZE3: security patch 2026-06-05 instead of 2026-05-05. A newer build for SM-M556E is available: M556EXXS5DZH1.

Download firmware
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Android 16
OS Version
2026-06-11
Build Date
2026-06-05
Security patch
2
Countries
2
CSC codes
5
Bootloader binary

Bootloader binary 5. 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: M556EXXS5DZF2
    ModelRegionCSC VersionRelease dateSizeFile nameDownload
    SM-M556E
    CAU Kazakhstan
    EUX Europe
    		M556EOXM5DZF2 2026-06-22 7.964 GiB
    SM-M556E_4_20260611110921_2eayl971k1_fac.zip
    		Download

    No matching downloads

    How to flash M556EXXS5DZF2

    • M556EXXS5DZF2 has bootloader binary 5. Your device must run binary 5 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 M556EXXS5DZF2

    • 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: June 2026

    SMR Jun-2026 fixes 41 vulnerabilities, 5 of them critical. Android Security Bulletin: 32, Samsung Semiconductor: 1, Samsung-specific issues (SVE): 8.

    Most severe Samsung fixes:

    • high Improper authorization in AppBlock prior to SMR Jun-2026 Release 1 allows local attacker to launch arbitrary activity. User interaction is required for triggering this vulnerability. (CVE-2026-21031)

    All fixes and Galaxy models with this patch

    Rollout of M556EXXS5DZF2 by region

    Samsung released this build in all regions (2) on the same day, June 22, 2026.

    Frequently Asked Questions

    M556EXXS5DZF2 is Android 16 firmware for Samsung Galaxy M55 5G, released for Europe (EUX), Kazakhstan (CAU). It includes the 2026-06-05 security patch. Samsung built it on 2026-06-11.

    SMR Jun-2026 fixes 41 vulnerabilities, 5 of them critical. Android Security Bulletin: 32, Samsung Semiconductor: 1, Samsung-specific issues (SVE): 8.

    No. A newer build for SM-M556E is available: M556EXXS5DZH1. Install it instead of M556EXXS5DZF2 unless you need this exact version. The previous build was M556EXXU5DZE3.

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

    This build uses bootloader binary 5. It can be flashed on a Samsung Galaxy M55 5G running binary 5 or lower; if the device already has a higher binary, Odin stops with "SW REV CHECK FAIL". 3 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.

    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 10 older builds
    One UI 7.0 Upgrade (Android 15)
    Bold new look

    Visual enhancements
    Enjoy a more sophisticated and unique look. One UI 7 introduces a stunning redesign to key components including buttons, menus, notifications and control bars, providing a more consistent visual experience with curves and circles. Beautiful new colors, soft animations, and an innovative blur effect that's unique to One UI make information hierarchy clearer and help you focus on important information.

    Reimagined Home screen
    Fr...

    • Stability and reliability
    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.

    • The security of your device has been improved.

    • Security
    The device is protected with improved security.

    • The security of your device has been improved.

    • Stability and reliability
    Device behavior has been improved.

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

    Model firmware by region