Samsung Galaxy Z Flip7 F766BXXUDCZJB
SM-F766B 34 countries Android 17

Samsung Galaxy Z Flip7 F766BXXUDCZJB Firmware

Samsung Galaxy Z Flip7 F766BXXUDCZJB is an Android 17 firmware for 34 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 F766BXXSDCZJ1, Android and the bootloader binary are unchanged, so you can switch between the two in both directions. This is the newest build for SM-F766B.

OS updates guaranteed until: Android 23Security updates until: Jul 6, 2032
Download firmware
8.8/10 (23)9,380 times
Android 17
OS Version
2026-10-19
First release
other regions until 2026-10-20
2026-10-05
Security patch
34
Countries
46
CSC codes
D (13)
Bootloader binary

Bootloader binary D (13). 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: F766BXXUDCZJB
    ModelRegionCSC VersionBuild DateRelease dateSizeFile nameDownload
    SM-F766B
    ACR, KSA Saudi Arabia
    AFR, DKR Kenya
    BOG, SFR France
    CAC Uzbekistan
    +29 more countries
    CAU, SKZ Kazakhstan
    ECT Nigeria
    EUX, EUY Europe
    GLB, XTC Philippines
    GTO Guatemala
    ILO Israel
    INS India
    MEO Portugal
    MET Ireland
    MID Iraq
    MM1, SIN, STH, XSP Singapore
    MOB Austria
    MOT, SIM Slovenia
    MSR Serbia
    PLS, PRT Poland
    SEK Ukraine
    SWC Switzerland
    THL Thailand
    TOP Montenegro
    TUR Turkey
    VIP Croatia
    XFA, XFV South Africa
    XID Indonesia
    XME Malaysia
    XNZ New Zealand
    XSA Australia
    XSG United Arab Emirates
    XXV Vietnam
    ILP
    		F766BOXMDCZJB 2026-10-20 2026-11-03 26.931 GiB
    SM-F766B_3_20261020005641_5v9typy8e6_fac.zip
    		Download
    SM-F766B
    COO Colombia
    		F766BOWODCZJB 2026-10-19 2026-11-06 26.573 GiB
    SM-F766B_3_20261019235941_7it3dh4ath_fac.zip
    		Download

    No matching downloads

    How to flash F766BXXUDCZJB

    • F766BXXUDCZJB has bootloader binary D (13). Your device must run binary D (13) 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 F766BXXUDCZJB

    • Stability and reliability
    Device behavior has been improved.

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

    Security patch: October 2026

    SMR Oct-2026 fixes 62 vulnerabilities, 9 of them critical. Android Security Bulletin: 45, Samsung Semiconductor: 4, Samsung-specific issues (SVE): 13.

    Most severe Samsung fixes:

    • high Out-of-bounds write in libsmkvextractor.so prior to SMR Oct-2026 Release 1 allows local attackers to execute arbitrary code. (CVE-2026-21114)
    • high Use after free in WSM service prior to SMR Oct-2026 Release 1 allows local attackers to potentially execute arbitrary code with system privilege. (CVE-2026-21120)
    • high Out-of-bounds write in libsamsungtts.so prior to SMR Oct-2026 Release 1 allows local attackers to execute arbitrary code. (CVE-2026-21122)

    All fixes and Galaxy models with this patch

    Rollout of F766BXXUDCZJB by region

    First release
    November 3, 2026
    Last region
    November 6, 2026
    Duration
    4 days
    Regions
    46
    1. Day 1 · · 1 region
      EuropeEUY
    2. Day 2 · · 42 regions
      AustriaMOBCroatiaVIPEuropeEUXFranceBOGSFRIndiaINSIndonesiaXIDIraqMIDIrelandMETIsraelILOKazakhstanCAUSKZKenyaAFRDKRMalaysiaXME
      +19 more countries
      MontenegroTOPNew ZealandXNZNigeriaECTPhilippinesGLBXTCPolandPLSPRTPortugalMEOSaudi ArabiaACRKSASerbiaMSRSingaporeMM1SINSTHXSPSloveniaMOTSIMSouth AfricaXFAXFVSwitzerlandSWCThailandTHLTurkeyTURUkraineSEKUnited Arab EmiratesXSGUzbekistanCACVietnamXXVILP
    3. Day 3 · · 1 region
      AustraliaXSA
    4. Day 4 · · 2 regions
      ColombiaCOOGuatemalaGTO

    Device specifications

    • Display diagonal17.3 cm (6.8")
    • Display resolution2520 x 1080 pixels
    • Processor familySamsung Exynos
    • Processor model2500
    • RAM12 GB
    • Rear camera resolution50 MP
    • Rear camera typeDual camera
    • Battery capacity4300 mAh
    • Weight188 g

    Frequently Asked Questions

    F766BXXUDCZJB is Android 17 firmware for Samsung Galaxy Z Flip7, released for 34 countries, 46 CSC codes. It includes the 2026-10-05 security patch. Samsung built it on 2026-10-19.

    SMR Oct-2026 fixes 62 vulnerabilities, 9 of them critical. Android Security Bulletin: 45, Samsung Semiconductor: 4, Samsung-specific issues (SVE): 13.

    Yes. F766BXXUDCZJB is the newest build for SM-F766B on SamFirm. The previous build was F766BXXSDCZJ1.

    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 Z Flip7 must be on bootloader binary D (13) or lower.

    This build uses bootloader binary D (13). It can be flashed on a Samsung Galaxy Z Flip7 running binary D (13) 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 Z Flip7

    • Stability and reliability
    Device behavior has been improved.

    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.

    One UI 9
    Galaxy AI

    Enhanced Now nudge
    Now nudge provides helpful suggestions in more places throughout your Galaxy experience. In addition to the keyboard, suggestions will now appear in conversation notifications and in a floating button in the bottom right corner of the screen. There are also several new types of suggestions, like entering reservation details or addresses and saving places in Google Maps.

    Focus on someone important
    My FanCam lets you select a person in a video and follow...

    • 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.

    Show 13 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 8.5
    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.

    No changelog details available.

    • 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.

    • 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.
    • Do more in DeX on connected displays
    You can now add widgets to your Home screen when using DeX on a connected display as well as control settings for the mouse and on-screen keyboard.
    • Security
    The device is protected with improved security.

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

    Model firmware by region

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