Samsung Galaxy Z Fold8 F9710ZCU3AZI9 Firmware

Samsung Galaxy Z Fold8 F9710ZCU3AZI9 is an Android 17 firmware for China (CHC). 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 F9710ZSU3AZI5 https://samfirm.shop/build/F9710ZSU3AZI5, Android and the bootloader binary are unchanged, so you can switch between the two in both directions. A newer build for SM-F9710 is available: F9710ZCU3AZJ8 https://samfirm.shop/build/F9710ZCU3AZJ8.

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Android 17
OS Version
2026-09-15
Build Date
2026-08-05
Security patch
1
Countries
1
CSC codes
3
Bootloader binary

Bootloader binary 3. 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: F9710ZCU3AZI1
    ModelRegionCSC VersionRelease dateSizeFile nameDownload
    SM-F9710
    CHC China
    F9710CHC3AZI9 2026-09-21 18.558 GiB
    SM-F9710_1_20260915125311_352xoheh7l_fac.zip
    Download

    No matching downloads

    How to flash F9710ZCU3AZI9

    • F9710ZCU3AZI9 has bootloader binary 3. Your device must run binary 3 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 F9710ZCU3AZI9

    • 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 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

    Device specifications

    • Display diagonal19.3 cm (7.6")
    • Display resolution1848 x 2448 pixels
    • RAM12 GB
    • Rear camera resolution50 MP
    • Rear camera typeDual camera
    • Battery capacity4800 mAh
    • Weight201 g

    Specifications of SM-F971B, a regional variant of the same device. Chipset and SIM lines are left out: they can differ by region.

    Frequently Asked Questions

    F9710ZCU3AZI9 is Android 17 firmware for Samsung Galaxy Z Fold8, released for China (CHC). It includes the 2026-08-05 security patch. Samsung built it on 2026-09-15.

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

    No. A newer build for SM-F9710 is available: F9710ZCU3AZJ8. Install it instead of F9710ZCU3AZI9 unless you need this exact version. The previous build was F9710ZSU3AZI5.

    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 download is 18.558 GiB; keep about twice that free on the computer to unzip it. The Samsung Galaxy Z Fold8 must be on bootloader binary 3 or lower.

    This build uses bootloader binary 3. It can be flashed on a Samsung Galaxy Z Fold8 running binary 3 or lower; if the device already has a higher binary, Odin stops with "SW REV CHECK FAIL". 5 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 Fold8

    https://samfirm.shop/build/F9710ZCU3AZJ8
    No changelog details available.

    • 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.

    • 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.

    https://samfirm.shop/build/F9710ZCS2AZH8

    • 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 4 older builds
    https://samfirm.shop/build/F9710ZCU1AZGI

    • Stability and reliability
    Device behavior has been improved.

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

    https://samfirm.shop/build/F9710ZSU1AZFX
    No changelog details available.