Samsung Galaxy Z Fold4 F936USQSAIZG1
SM-F936U 2 countries Android 16

Samsung Galaxy Z Fold4 F936USQSAIZG1 Firmware

Samsung Galaxy Z Fold4 F936USQSAIZG1 is an Android 16 firmware for CHA, United States (ATT, CCT, TMB, TMK, VZW). 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 F936USQSAIZF1: security patch 2026-07-05 instead of 2026-06-05. A newer build for SM-F936U is available: F936USQSAIZH2.

OS updates guaranteed until: Android 16Security updates until: Jul 2, 2027
Download firmware
9.4/10 (37)2,720 times
Android 16
OS Version
2026-07-09
Build Date
2026-07-05
Security patch
2
Countries
6
CSC codes
A (10)
Bootloader binary

Bootloader binary A (10). 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#.
    MODEM/CP Version: F936USQSAIZG1
    ModelRegionCSC VersionRelease dateSizeFile nameDownload
    SM-F936U
    ATT United States
    		F936UOYNAIZG1 2026-07-28 9.602 GiB
    SM-F936U_5_20260709163420_0vsg2hr6e4_fac.zip
    		Download
    SM-F936U
    CCT United States
    		F936UOYNAIZG1 2026-07-29 9.551 GiB
    SM-F936U_5_20260709151800_yw0o4l6ouq_fac.zip
    		Download
    SM-F936U
    CHA
    		F936UOYNAIZG1 2026-07-29 9.554 GiB
    SM-F936U_5_20260709145440_u0we3ptq65_fac.zip
    		Download
    SM-F936U
    TMB United States
    		F936UOYNAIZG1 2026-07-29 9.589 GiB
    SM-F936U_5_20260709154201_a3qylbg2ff_fac.zip
    		Download
    SM-F936U
    TMK United States
    		F936UOYNAIZG1 2026-07-29 9.589 GiB
    SM-F936U_5_20260709161051_kt9aakzewc_fac.zip
    		Download
    SM-F936U
    VZW United States
    		F936UOYNAIZG1 2026-07-29 9.693 GiB
    SM-F936U_5_20260709140841_s77o219srh_fac.zip
    		Download

    No matching downloads

    How to flash F936USQSAIZG1

    • F936USQSAIZG1 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 F936USQSAIZG1

    • 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: July 2026

    SMR Jul-2026 fixes 53 vulnerabilities, 6 of them critical. Android Security Bulletin: 39, Samsung-specific issues (SVE): 14.

    Most severe Samsung fixes:

    • critical Out-of-bounds write in libsavsac.so prior to SMR Jul-2026 Release 1 allows remote attackers to execute arbitrary code. (CVE-2026-21042)
    • high Improper authorization in KnoxGuardManager prior to SMR Jul-2026 Release 1 allows local attackers to bypass the persistence configuration of the application. (CVE-2026-21044)
    • high Out-of-bounds write in parsing TIFF format in libimagecodec.media.quram.so prior to SMR Jul-2026 Release 1 allows remote attackers to write out-of-bounds memory. (CVE-2026-21045)

    All fixes and Galaxy models with this patch

    Rollout of F936USQSAIZG1 by region

    First release
    July 28, 2026
    Last region
    July 29, 2026
    Duration
    2 days
    Regions
    6
    1. Day 1 · · 1 region
      United StatesATT
    2. Day 2 · · 5 regions
      United StatesCCTTMBTMKVZWCHA

    Device specifications

    • Display diagonal19.3 cm (7.6")
    • Display resolution2176 x 1812 pixels
    • RAM12 GB
    • Rear camera resolution50 MP
    • Rear camera typeTriple camera
    • Battery capacity4400 mAh
    • Weight263 g

    Specifications of SM-F936B, a regional variant of the same device. Chipset and SIM lines are left out: they can differ by region.

    Frequently Asked Questions

    F936USQSAIZG1 is Android 16 firmware for Samsung Galaxy Z Fold4, released for CHA, United States (ATT, CCT, TMB, TMK, VZW). It includes the 2026-07-05 security patch. Samsung built it on 2026-07-09.

    SMR Jul-2026 fixes 53 vulnerabilities, 6 of them critical. Android Security Bulletin: 39, Samsung-specific issues (SVE): 14.

    No. A newer build for SM-F936U is available: F936USQSAIZH2. Install it instead of F936USQSAIZG1 unless you need this exact version. The previous build was F936USQSAIZF1.

    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 Fold4 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 Fold4 running binary A (10) or lower; if the device already has a higher binary, Odin stops with "SW REV CHECK FAIL". 3 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 Z Fold4

    • 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.

    • The security of your device has been improved.

    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...

    Show 3 older builds

    • The security of your device has been improved.

    Model firmware by region