Samsung Galaxy A15 5G A156MUBS9DZB3
SM-A156M 11 countries Android 16

Samsung Galaxy A15 5G A156MUBS9DZB3 Firmware

Samsung Galaxy A15 5G A156MUBS9DZB3 is an Android 16 firmware for 11 countries, 33 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 A156MUBS8DZA3: bootloader binary raised from 8 to 9, so after installing it there is no way back to older builds; security patch 2026-02-05 instead of 2026-01-01. A newer build for SM-A156M is available: A156MUBSAEZG1.

OS updates guaranteed until: Android 18Security updates until: Jan 1, 2029
Download firmware
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Android 16
OS Version
2026-03-11
Build Date
2026-02-05
Security patch
11
Countries
33
CSC codes
9
Bootloader binary

Bootloader binary 9. Flashing firmware with a lower binary is usually blocked by Samsung anti-rollback.

Newer builds of Samsung Galaxy A15 5G use bootloader binary A (10) (latest: A156MUBSAEZG1). If your device already runs binary A (10), 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: A156MUBS9DZA5
    ModelRegionCSC VersionBuild DateRelease dateSizeFile nameDownload
    SM-A156M
    ANC, ARO, CTI, PSN, UFN Argentina
    CDR Dominican Republic
    CTU, UFU, UPO, UYO Uruguay
    GTO Guatemala
    +3 more countries
    IUS, MXO, TCE, TMM Mexico
    TPA Panama
    ZTA, ZTM, ZTO, ZVV Brazil
    		A156MOWO9DZB3 2026-03-11 2026-03-11 7.215 GiB
    SM-A156M_3_20260220235710_drfmwm9x0o_fac.zip
    		Download
    SM-A156M
    CGU, PGU Guatemala
    CHE, CHL, CHO, CHT, CHX, CRC Chile
    COM Colombia
    DOR Dominican Republic
    +2 more countries
    PEO, PNT Peru
    GLO
    		A156MOWB9DZB3 2026-03-11 2026-03-11 7.067 GiB
    SM-A156M_3_20260221000811_dufn09zshj_fac.zip
    		Download

    No matching downloads

    How to flash A156MUBS9DZB3

    • A156MUBS9DZB3 has bootloader binary 9. Your device must run binary 9 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 A156MUBS9DZB3

    • 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: February 2026

    SMR Feb-2026 fixes 32 vulnerabilities, 0 of them critical. Android Security Bulletin: 25, Samsung-specific issues (SVE): 7.

    Most severe Samsung fixes:

    • high Improper access control in Emergency Sharing prior to SMR Feb-2026 Release 1 allows local attackers to interrupt its functioning. (CVE-2026-20977)
    • high Improper export of android application components in Samsung Dialer prior to SMR Feb-2026 Release 1 allows local attackers to launch arbitrary activity with Samsung Dialer privilege. (CVE-2026-20983)
    • high Improper authorization in KnoxGuardManager prior to SMR Feb-2026 Release 1 allows local attackers to bypass the persistence configuration of the application. (CVE-2026-20978)

    All fixes and Galaxy models with this patch

    Rollout of A156MUBS9DZB3 by region

    Samsung released this build in all regions (33) on the same day, March 11, 2026.

    Device specifications

    • Display diagonal16.5 cm (6.5")
    • Display resolution1080 x 2340 pixels
    • RAM4 GB
    • Rear camera resolution50 MP
    • Rear camera typeTriple camera
    • Battery capacity5000 mAh
    • Weight200 g

    Specifications of SM-A156B, a regional variant of the same device. Chipset and SIM lines are left out: they can differ by region.

    Frequently Asked Questions

    A156MUBS9DZB3 is Android 16 firmware for Samsung Galaxy A15 5G, released for 11 countries, 33 CSC codes. It includes the 2026-02-05 security patch. Samsung built it on 2026-03-11.

    SMR Feb-2026 fixes 32 vulnerabilities, 0 of them critical. Android Security Bulletin: 25, Samsung-specific issues (SVE): 7.

    No. A newer build for SM-A156M is available: A156MUBSAEZG1. Install it instead of A156MUBS9DZB3 unless you need this exact version. The previous build was A156MUBS8DZA3.

    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 A15 5G must be on bootloader binary 9 or lower.

    This build uses bootloader binary 9. It can be flashed on a Samsung Galaxy A15 5G running binary 9 or lower; if the device already has a higher binary, Odin stops with "SW REV CHECK FAIL". 2 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 A15 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)
    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.

    Show 9 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...

    • The security of your device has been improved.

    • The Camera and Gallery functions have been improved.
    • Security
    The device is protected with improved security.

    • The security of your device has been improved.

    · The security of your device has been improved.

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

    Model firmware by region