Samsung Galaxy A36 5G A366BXXS9BZDA
SM-A366B 33 countries Android 16

Samsung Galaxy A36 5G A366BXXS9BZDA Firmware

Samsung Galaxy A36 5G A366BXXS9BZDA is an Android 16 firmware for 33 countries, 46 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 A366BXXS8BZC2: bootloader binary raised from 8 to 9, so after installing it there is no way back to older builds; security patch 2026-04-05 instead of 2026-03-05. A newer build for SM-A366B is available: A366BXXUCDZIF.

OS updates guaranteed until: Android 21Security updates until: Mar 3, 2031
Download firmware
8.8/10 (114)33,141 times
Android 16
OS Version
2026-05-04
First release
other regions until 2026-05-07
2026-04-05
Security patch
33
Countries
46
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 A36 5G use bootloader binary C (12) (latest: A366BXXUCDZIF). If your device already runs binary C (12), 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: A366BXXS9BZDA
    ModelRegionCSC VersionBuild DateRelease dateSizeFile nameDownload
    SM-A366B
    ACR, KSA Saudi Arabia
    AFG Afghanistan
    AFR, DKR Kenya
    ECT Nigeria
    +10 more countries
    EGY Egypt
    FWD, MWD Morocco
    ILO Israel
    LYS Libya
    MID Iraq
    PAK, PKD Pakistan
    TUN Tunisia
    XFA, XFV South Africa
    XSG United Arab Emirates
    ILP
    		A366BOJM9BZDA 2026-05-07 2026-05-07 10.061 GiB
    SM-A366B_2_20260424134141_ot6f9ldoru_fac.zip
    		Download
    SM-A366B
    BOG, SFR France
    EUX, EUY Europe
    MEO Portugal
    MOB Austria
    +7 more countries
    MOT, SIM Slovenia
    MSR Serbia
    PLS, PRT Poland
    SWC Switzerland
    TOP Montenegro
    TUR Turkey
    VIP Croatia
    		A366BOXM9BZDA 2026-05-04 2026-05-04 10.226 GiB
    SM-A366B_2_20260423130311_j785ogl2j3_fac.zip
    		Download
    SM-A366B
    GLB, XTC Philippines
    MM1, SIN, STH, XSP Singapore
    THL Thailand
    XID Indonesia
    +4 more countries
    XME Malaysia
    XNZ New Zealand
    XSA Australia
    XXV Vietnam
    		A366BOLM9BZDA 2026-05-06 2026-05-06 10.246 GiB
    SM-A366B_2_20260423101511_nj2dwbt51z_fac.zip
    		Download

    No matching downloads

    How to flash A366BXXS9BZDA

    • A366BXXS9BZDA 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 A366BXXS9BZDA

    • 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: April 2026

    SMR Apr-2026 fixes 44 vulnerabilities, 14 of them critical. Android Security Bulletin: 33, Samsung Semiconductor: 4, Samsung-specific issues (SVE): 7.

    Most severe Samsung fixes:

    • high Improper check for exceptional conditions in Device Care prior to SMR Apr-2026 Release 1 allows physical attackers to bypass Knox Guard. (CVE-2026-21007)
    • high Improper input validation in Retail Mode prior to SMR Apr-2026 Release 1 allows local attackers to trigger privileged functions. (CVE-2026-21010)

    All fixes and Galaxy models with this patch

    Rollout of A366BXXS9BZDA by region

    First release
    May 4, 2026
    Last region
    May 7, 2026
    Duration
    4 days
    Regions
    46
    1. Day 1 · · 15 regions
      AustriaMOBCroatiaVIPEuropeEUXEUYFranceBOGSFRMontenegroTOPPolandPLSPRTPortugalMEOSerbiaMSRSloveniaMOTSIMSwitzerlandSWCTurkeyTUR
    2. Day 3 · · 12 regions
      AustraliaXSAIndonesiaXIDMalaysiaXMENew ZealandXNZPhilippinesGLBXTCSingaporeMM1SINSTHXSPThailandTHLVietnamXXV
    3. Day 4 · · 19 regions
      AfghanistanAFGEgyptEGYIraqMIDIsraelILOKenyaAFRDKRLibyaLYSMoroccoFWDMWDNigeriaECTPakistanPAKPKDSaudi ArabiaACRKSASouth AfricaXFAXFVTunisiaTUN
      +2 more countries
      United Arab EmiratesXSGILP

    Device specifications

    • Launched withAndroid 15
    • Display diagonal17 cm (6.7")
    • Display resolution1080 x 2340 pixels
    • Processor familySnapdragon
    • RAM6 GB
    • Rear camera resolution50 MP
    • Rear camera typeTriple camera
    • SIM cardsDual SIM
    • Battery capacity5000 mAh
    • Weight195 g

    Frequently Asked Questions

    A366BXXS9BZDA is Android 16 firmware for Samsung Galaxy A36 5G, released for 33 countries, 46 CSC codes. It includes the 2026-04-05 security patch. Samsung built it on 2026-05-04.

    SMR Apr-2026 fixes 44 vulnerabilities, 14 of them critical. Android Security Bulletin: 33, Samsung Semiconductor: 4, Samsung-specific issues (SVE): 7.

    No. A newer build for SM-A366B is available: A366BXXUCDZIF. Install it instead of A366BXXS9BZDA unless you need this exact version. The previous build was A366BXXS8BZC2.

    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 A36 5G must be on bootloader binary 9 or lower.

    This build uses bootloader binary 9. It can be flashed on a Samsung Galaxy A36 5G running binary 9 or lower; if the device already has a higher binary, Odin stops with "SW REV CHECK FAIL". 1 other build of this model uses the same binary, so you can switch between them in both directions.

    Other builds and changelog for Samsung Galaxy A36 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.

    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.

    • Stability and reliability
    Device behavior has been improved.

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

    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.

    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.

    • Stability and reliability
    Device behavior 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.

    • 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