Samsung Galaxy A56 5G A566EXXS7BYL3
SM-A566E 19 countries Android 16

Samsung Galaxy A56 5G A566EXXS7BYL3 Firmware

Samsung Galaxy A56 5G A566EXXS7BYL3 is an Android 16 firmware for 19 countries, 48 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 A566EXXS7BYK4: security patch 2025-12-01 instead of 2025-11-01. A newer build for SM-A566E is available: A566EXXUEDZJ1.

OS updates guaranteed until: Android 22Security updates until: Mar 31, 2032
Download firmware
8.8/10 (180)53,506 times
Android 16
OS Version
2025-12-17
First release
other regions until 2025-12-23
2025-12-01
Security patch
19
Countries
48
CSC codes
7
Bootloader binary

Bootloader binary 7. Flashing firmware with a lower binary is usually blocked by Samsung anti-rollback.

Newer builds of Samsung Galaxy A56 5G use bootloader binary E (14) (latest: A566EXXUEDZJ1). If your device already runs binary E (14), 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.
    2
    MODEM/CP Version: A566EXXS7BYL3
    ModelRegionCSC VersionBuild DateRelease dateSizeFile nameDownload
    SM-A566E
    ARO, CTI, PSN, PSP, UFN Argentina
    BVO Bolivia
    CDR, DOR Dominican Republic
    CGU, GTO, PGU Guatemala
    +11 more countries
    CHE, CHL, CHO, CHT, CRC Chile
    COB, COL, COM, COO Colombia
    CTP, TGP Paraguay
    CTU, UFU, UPO, UYO Uruguay
    EBE, ECO Ecuador
    EON Trinidad & Tobago
    IUS, MXO, TCE, TMM Mexico
    PEO, PET, PNT, SAM Peru
    TPA Panama
    ZTA, ZTM, ZTO, ZVV Brazil
    GLO
    		A566EOWO7BYL3 2025-12-23 2025-12-18 9.812 GiB
    SM-A566E_2_20251204064740_a1wywh7unt_fac.zip
    		Download
    SM-A566E
    CAC Uzbekistan
    CAU, SKZ Kazakhstan
    SER Russia
    SOZ
    		A566EOXE7BYL3 2025-12-17 2025-12-17 9.441 GiB
    SM-A566E_2_20251205191451_7914a7fpyx_fac.zip
    		Download

    No matching downloads

    How to flash A566EXXS7BYL3

    • A566EXXS7BYL3 has bootloader binary 7. Your device must run binary 7 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 A566EXXS7BYL3

    • 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: December 2025

    SMR Dec-2025 fixes 65 vulnerabilities, 6 of them critical. Android Security Bulletin: 57, Samsung-specific issues (SVE): 8.

    Most severe Samsung fixes:

    • high Out-of-bounds write in decoding metadata in fingerprint trustlet (CVE-2025-21072)
    • high Out-of-bounds write in libimagecodec.quram.so (CVE-2025-58477)
    • high Out-of-bounds write in libimagecodec.quram.so (CVE-2025-58478)

    All fixes and Galaxy models with this patch

    Rollout of A566EXXS7BYL3 by region

    First release
    December 17, 2025
    Last region
    December 23, 2025
    Duration
    7 days
    Regions
    48
    1. Day 1 · · 5 regions
      KazakhstanCAUSKZRussiaSERUzbekistanCACSOZ
    2. Day 2 · · 32 regions
      ArgentinaAROCTIPSNPSPUFNBoliviaBVOBrazilZTAZTMZTOZVVChileCRCColombiaCOBCOLCOMCOODominican RepublicCDRDORGuatemalaCGUGTOPGUMexicoIUSMXOTCETMMPanamaTPAParaguayCTPTGPUruguayCTUUFUUPOUYOGLO
    3. Day 3 · · 4 regions
      ChileCHECHLCHOCHT
    4. Day 7 · · 7 regions
      EcuadorEBEECOPeruPEOPETPNTSAMTrinidad & TobagoEON

    Device specifications

    • Launched withAndroid 15
    • Display diagonal17 cm (6.7")
    • Display resolution1080 x 2340 pixels
    • RAM8 GB
    • Rear camera resolution50 MP
    • Rear camera typeTriple camera
    • Battery capacity5000 mAh
    • Weight198 g

    Specifications of SM-A566B, a regional variant of the same device. Chipset and SIM lines are left out: they can differ by region.

    Frequently Asked Questions

    A566EXXS7BYL3 is Android 16 firmware for Samsung Galaxy A56 5G, released for 19 countries, 48 CSC codes. It includes the 2025-12-01 security patch. Samsung built it on 2025-12-17.

    SMR Dec-2025 fixes 65 vulnerabilities, 6 of them critical. Android Security Bulletin: 57, Samsung-specific issues (SVE): 8.

    No. A newer build for SM-A566E is available: A566EXXUEDZJ1. Install it instead of A566EXXS7BYL3 unless you need this exact version. The previous build was A566EXXS7BYK4.

    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 A56 5G must be on bootloader binary 7 or lower.

    This build uses bootloader binary 7. It can be flashed on a Samsung Galaxy A56 5G running binary 7 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 A56 5G

    One UI 9
    Productivity and multitasking

    More customizable quick panel
    You can now rearrange and customize the controls in your quick panel even more than before. You can change the size of the brightness and volume sliders as well as the media player. You can also separate the sound mode button from the volume slider.

    Privacy, security, and device protection

    Warranty and care
    The new Warranty and care menu in settings lets you check your warranty information and access diagnostic checks a...

    • Security
    The device is protected with improved security.

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

    · Device stability improvements, bug fixes.
    · New and / or enhanced features.
    · Further improvements to performance.

    • 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...

    Show 8 older builds

    • Security
    The device is protected with improved security.

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

    Model firmware by region