Samsung Galaxy M55 5G M556BXXS4AXL1
SM-M556B 9 countries Android 14

Samsung Galaxy M55 5G M556BXXS4AXL1 Firmware

Samsung Galaxy M55 5G M556BXXS4AXL1 is an Android 14 firmware for 9 countries, 9 CSC codes. 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 M556BXXS4AXK6: security patch 2025-01-01 instead of 2024-11-01. A newer build for SM-M556B is available: M556BXXS5DZH1.

Download firmware
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Android 14
OS Version
2025-01-14
First release
other regions until 2025-01-20
2025-01-01
Security patch
9
Countries
9
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: M556BXXS5DZH1). 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#.
    Your CSC is in Settings → About phone (About tablet) → Software information, or dial *#1234#. The CSC sets your region's features and network bands. Download the firmware for your country.
    3
    MODEM/CP Version: M556BXXS4AXL1
    ModelRegionCSC VersionBuild DateRelease dateSizeFile nameDownload
    SM-M556B
    BNG Bangladesh
    INS India
    NPB Nepal
    SLK Sri Lanka
    		M556BODM4AXL1 2025-01-14 2025-01-14 7.329 GiB
    SM-M556B_1_20250102134711_srn1dokqza_fac.zip
    		Download
    SM-M556B
    EGY Egypt
    ILO Israel
    MID Iraq
    ILP
    		M556BOJM4AXL1 2025-01-20 2025-01-22 6.949 GiB
    SM-M556B_1_20250103121440_2ml9hxqiph_fac.zip
    		Download
    SM-M556B
    XXV Vietnam
    		M556BOLM4AXL1 2025-01-20 2025-01-22 7.017 GiB
    SM-M556B_1_20250107154440_zqvv2j8gb3_fac.zip
    		Download

    No matching downloads

    How to flash M556BXXS4AXL1

    • M556BXXS4AXL1 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.

    What's new in M556BXXS4AXL1

    • Security
    The device is protected with improved security.

    Security patch: January 2025

    SMR Jan-2025 fixes 40 vulnerabilities, 5 of them critical. Android Security Bulletin: 27, Samsung-specific issues (SVE): 13.

    Most severe Samsung fixes:

    • high Out-of-bounds write in libsthmbc.so (CVE-2025-20881)
    • high Out-of-bounds write in libsthmbc.so (CVE-2025-20882)
    • high Improper access control in SoundPicker (CVE-2025-20883)

    All fixes and Galaxy models with this patch

    Rollout of M556BXXS4AXL1 by region

    First release
    January 14, 2025
    Last region
    January 22, 2025
    Duration
    9 days
    Regions
    9
    1. Day 1 · · 4 regions
      BangladeshBNGIndiaINSNepalNPBSri LankaSLK
    2. Day 9 · · 5 regions
      EgyptEGYIraqMIDIsraelILOVietnamXXVILP

    Frequently Asked Questions

    M556BXXS4AXL1 is Android 14 firmware for Samsung Galaxy M55 5G, released for 9 countries, 9 CSC codes. It includes the 2025-01-01 security patch. Samsung built it on 2025-01-14.

    SMR Jan-2025 fixes 40 vulnerabilities, 5 of them critical. Android Security Bulletin: 27, Samsung-specific issues (SVE): 13.

    No. A newer build for SM-M556B is available: M556BXXS5DZH1. Install it instead of M556BXXS4AXL1 unless you need this exact version. The previous build was M556BXXS4AXK6.

    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 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". 9 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 13 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.

    • Stability and reliability
    Device behavior has been improved.

    • Security
    The device is protected with improved security.

    • Stability and reliability
    Device behavior has been improved.

    • Security
    The device is protected with improved security.

    • Stability and reliability
    Device behavior has been improved.

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

    • Security
    The device is protected with improved security.

    Model firmware by region