Samsung Galaxy A15 A155MUBSCEZH3
SM-A155M 14 countries Android 16

Samsung Galaxy A15 A155MUBSCEZH3 Firmware

Samsung Galaxy A15 A155MUBSCEZH3 is an Android 16 firmware for 14 countries, 37 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 A155MUBSBEZG1: bootloader binary raised from B (11) to C (12), so after installing it there is no way back to older builds; security patch 2026-08-05 instead of 2026-07-05. This is the newest build for SM-A155M.

OS updates guaranteed until: Android 18Security updates until: Jan 26, 2029
9.3/10 (36)7,538 times
Android 16
OS Version
2026-09-04
Build Date
2026-08-05
Security patch
14
Countries
37
CSC codes
C (12)
Bootloader binary

Bootloader binary C (12). 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#.
    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: A155MUBSCEZH3
    ModelRegionCSC VersionRelease dateSizeFile nameDownload
    SM-A155M
    ARO, CTI, PSN, PSP, UFN Argentina
    BVO Bolivia
    CTP, TGP Paraguay
    CTU, UPO, UYO Uruguay
    +4 more countries
    GTO Guatemala
    IUS, MXO, TCE, TMM Mexico
    TPA Panama
    ZTA, ZTM, ZTO, ZVV Brazil
    		A155MOWOCEZH3 2026-09-16 7.124 GiB
    SM-A155M_4_20260904154111_f3ow67f393_fac.zip
    SM-A155M
    CGU, PGU Guatemala
    CHO, CRC Chile
    COB, COL, COM, COO Colombia
    EBE, ECO Ecuador
    +3 more countries
    EON Trinidad & Tobago
    PEO, PET, PNT, SAM Peru
    GLO
    		A155MOWBCEZH3 2026-09-16 6.936 GiB
    SM-A155M_4_20260904155041_vjyt5dbyvu_fac.zip

    No matching downloads

    How to flash A155MUBSCEZH3

    • A155MUBSCEZH3 has bootloader binary C (12). Your device must run binary C (12) 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 A155MUBSCEZH3

    • 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: August 2026

    SMR Aug-2026 fixes 54 vulnerabilities, 8 of them critical. Android Security Bulletin: 38, Samsung-specific issues (SVE): 16.

    Most severe Samsung fixes:

    • high Improper access control in Weaver prior to SMR Aug-2026 Release 1 allows local attackers to cause device inoperability. (CVE-2026-21064)
    • high Improper input validation in Galaxy Themes prior to SMR Aug-2026 Release 1 allows physical attackers to launch arbitrary activity. (CVE-2026-21073)

    All fixes and Galaxy models with this patch

    Rollout of A155MUBSCEZH3 by region

    First release
    September 16, 2026
    Last region
    September 24, 2026
    Duration
    9 days
    Regions
    37
    1. Day 1 · · 6 regions
      BoliviaBVOColombiaCOMGuatemalaCGUGTOPGUPanamaTPA
    2. Day 2 · · 30 regions
      ArgentinaAROCTIPSNPSPUFNBrazilZTAZTMZTOZVVChileCRCColombiaCOBCOLCOOEcuadorEBEECOMexicoIUSMXOTCETMMParaguayCTPTGPPeruPEOPETPNTSAMTrinidad & TobagoEONUruguayCTUUPOUYOGLO
    3. Day 9 · · 1 region
      ChileCHO

    Device specifications

    • Launched withAndroid 14
    • Display diagonal16.5 cm (6.5")
    • Display resolution1080 x 2340 pixels
    • Processor frequency2 GHz
    • RAM4 GB
    • Rear camera resolution50 MP
    • Rear camera typeTriple camera
    • SIM cardsSingle SIM
    • Battery capacity5000 mAh
    • Weight200 g

    Frequently Asked Questions

    A155MUBSCEZH3 is Android 16 firmware for Samsung Galaxy A15, released for 14 countries, 37 CSC codes. It includes the 2026-08-05 security patch. Samsung built it on 2026-09-04.

    SMR Aug-2026 fixes 54 vulnerabilities, 8 of them critical. Android Security Bulletin: 38, Samsung-specific issues (SVE): 16.

    Yes. A155MUBSCEZH3 is the newest build for SM-A155M on SamFirm. The previous build was A155MUBSBEZG1.

    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 must be on bootloader binary C (12) or lower.

    This build uses bootloader binary C (12). It can be flashed on a Samsung Galaxy A15 running binary C (12) or lower; if the device already has a higher binary, Odin stops with "SW REV CHECK FAIL". No other build of this model uses binary C (12).

    Other builds and changelog for Samsung Galaxy A15

    • 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.

    • The security of your device has been improved.

    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...

    Show 13 older builds

    · The security of your device has been improved.

    • 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 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.

    • Stability and reliability
    Device behavior has been improved.

    • The security of your device has been improved.

    Model firmware by region