Samsung Galaxy Z Fold7 F966USQSABZE3
SM-F966U 3 countries Android 16

Samsung Galaxy Z Fold7 F966USQSABZE3 Firmware

Samsung Galaxy Z Fold7 F966USQSABZE3 is an Android 16 firmware for CHA, SPT, United States (ATT, CCT, TMB, TMK, USC, VZW, XAA). 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 F966USQU9BZDN: bootloader binary raised from 9 to A (10), so after installing it there is no way back to older builds; security patch 2026-05-05 instead of 2026-04-05. A newer build for SM-F966U is available: F966USQUDCZJB.

OS updates guaranteed until: Android 23Security updates until: Jul 2, 2032
Download firmware
9.2/10 (32)3,901 times
Android 16
OS Version
2026-05-13
First release
other regions until 2026-06-22
2026-05-05
Security patch
3
Countries
9
CSC codes
A (10)
Bootloader binary

Bootloader binary A (10). Flashing firmware with a lower binary is usually blocked by Samsung anti-rollback.

Newer builds of Samsung Galaxy Z Fold7 use bootloader binary D (13) (latest: F966USQUDCZJB). If your device already runs binary D (13), 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#.
    8
    MODEM/CP Version: F966USQSABZE3
    ModelRegionCSC VersionBuild DateRelease dateSizeFile nameDownload
    SM-F966U
    ATT United States
    		F966UOYNABZE3 2026-05-13 2026-05-26 17.437 GiB
    SM-F966U_2_20260513185120_526ducnkco_fac.zip
    		Download
    SM-F966U
    CCT United States
    		F966UOYNABZE3 2026-05-13 2026-05-26 17.43 GiB
    SM-F966U_2_20260513170521_20rdrkxkvi_fac.zip
    		Download
    SM-F966U
    CHA
    		F966UOYNABZE3 2026-05-13 2026-05-26 17.445 GiB
    SM-F966U_2_20260513175940_rmm6kj14di_fac.zip
    		Download
    SM-F966U
    XAA United States
    SPT
    		F966UOYNABZE3 2026-06-22 2026-06-30 17.525 GiB
    SM-F966U_2_20260622124730_odw18ba52m_fac.zip
    		Download
    SM-F966U
    TMB United States
    		F966UOYNABZE3 2026-05-13 2026-05-27 17.442 GiB
    SM-F966U_2_20260513141611_166vmvqdhj_fac.zip
    		Download
    SM-F966U
    TMK United States
    		F966UOYNABZE3 2026-05-13 2026-05-27 17.442 GiB
    SM-F966U_2_20260513153821_4hjy0v77vr_fac.zip
    		Download
    SM-F966U
    USC United States
    		F966UOYNABZE3 2026-05-13 2026-06-01 17.431 GiB
    SM-F966U_2_20260513193951_5yd5hmiln6_fac.zip
    		Download
    SM-F966U
    VZW United States
    		F966UOYNABZE3 2026-05-13 2026-05-26 17.525 GiB
    SM-F966U_2_20260513161741_mnapfp8ly3_fac.zip
    		Download

    No matching downloads

    How to flash F966USQSABZE3

    • F966USQSABZE3 has bootloader binary A (10). Your device must run binary A (10) 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 F966USQSABZE3

    • 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: May 2026

    SMR May-2026 fixes 36 vulnerabilities, 2 of them critical. Android Security Bulletin: 29, Samsung-specific issues (SVE): 7.

    Most severe Samsung fixes:

    • high Improper input validation in FacAtFunction in Galaxy Watch prior to SMR May-2026 Release 1 allows local attacker to execute arbitrary code with system privilege. (CVE-2026-21019)

    All fixes and Galaxy models with this patch

    Rollout of F966USQSABZE3 by region

    First release
    May 26, 2026
    Last region
    June 30, 2026
    Duration
    36 days
    Regions
    8
    1. Day 1 · · 4 regions
      United StatesATTCCTVZWCHA
    2. Day 2 · · 2 regions
      United StatesTMBTMK
    3. Day 7 · · 1 region
      United StatesUSC
    4. Day 36 · · 1 region
      United StatesXAA

    Device specifications

    • Launched withAndroid 16.0
    • Display diagonal20.3 cm (8")
    • Display resolution2184 x 1968 pixels
    • RAM12 GB
    • Rear camera resolution200 MP
    • Rear camera typeTriple camera
    • Battery capacity4400 mAh
    • Weight215 g

    Specifications of SM-F966B, a regional variant of the same device. Chipset and SIM lines are left out: they can differ by region.

    Frequently Asked Questions

    F966USQSABZE3 is Android 16 firmware for Samsung Galaxy Z Fold7, released for CHA, SPT, United States (ATT, CCT, TMB, TMK, USC, VZW, XAA). It includes the 2026-05-05 security patch. Samsung built it on 2026-05-13.

    SMR May-2026 fixes 36 vulnerabilities, 2 of them critical. Android Security Bulletin: 29, Samsung-specific issues (SVE): 7.

    No. A newer build for SM-F966U is available: F966USQUDCZJB. Install it instead of F966USQSABZE3 unless you need this exact version. The previous build was F966USQU9BZDN.

    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 Fold7 must be on bootloader binary A (10) or lower.

    This build uses bootloader binary A (10). It can be flashed on a Samsung Galaxy Z Fold7 running binary A (10) 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 Fold7

    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.

    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.

    • 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...

    • 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