SM-F971U1 9 countries Android 17

Samsung Galaxy Z Fold8 F971U1UES3AZIL Firmware

Samsung Galaxy Z Fold8 F971U1UES3AZIL is an Android 17 firmware for 9 countries, 16 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 F971U1UEU3AZI8: security patch 2026-10-05 instead of 2026-09-05. This is the newest build for SM-F971U1.

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Android 17
OS Version
2026-09-28
Build Date
2026-10-05
Security patch
9
Countries
16
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#.
    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: F971U1UES3AZIL
    ModelRegionCSC VersionRelease dateSizeFile nameDownload
    SM-F971U1
    ACG, AIO, ATT, CCT, LRA, TMK, XAA, XAR United States
    ATC, CHA, DSA, DSG, DSH, FKR
    		F971U1OYM3AZIL 2026-10-06 16.704 GiB
    SM-F971U1_1_20260928202003_3i29hvlte1_fac.zip
    SM-F971U1
    PCT Puerto Rico
    LLA
    		F971U1OWA3AZIL 2026-10-07 16.75 GiB
    SM-F971U1_1_20260928213342_6hee6z7vzs_fac.zip

    No matching downloads

    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.

    What's new in F971U1UES3AZIL

    • Security
    The device is protected with improved security.

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

    How to flash F971U1UES3AZIL

    • F971U1UES3AZIL 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.

    Frequently Asked Questions

    F971U1UES3AZIL is Android 17 firmware for Samsung Galaxy Z Fold8, released for 9 countries, 16 CSC codes. It includes the 2026-10-05 security patch. Samsung built it on 2026-09-28.

    Yes. F971U1UES3AZIL is the newest build for SM-F971U1 on SamFirm. The previous build was F971U1UEU3AZI8.

    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 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". 2 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

    • 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.

    • 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.

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

    Show 1 older build
    No changelog details available.
    Model firmware by region