SM-F971U 1 country Android 17

Samsung Galaxy Z Fold8 F971USQU3AZI8 Firmware

Samsung Galaxy Z Fold8 F971USQU3AZI8 is an Android 17 firmware for United States (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 F971USQU3AZI5, Android and the bootloader binary are unchanged, so you can switch between the two in both directions. A newer build for SM-F971U is available: F971USQS3AZIL.

9.0/10 (35)651 times
Android 17
OS Version
2026-09-15
Build Date
2026-09-05
Security patch
1
Countries
2
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: F971USQU3AZI8
    ModelRegionCSC VersionRelease dateSizeFile nameDownload
    SM-F971U
    VZW, XAA United States
    		F971UOYN3AZI8 2026-09-24 17.379 GiB
    SM-F971U_1_20260915173351_wrwd1yfuuq_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 F971USQU3AZI8

    • Stability and reliability
    Device behavior has been improved.

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

    How to flash F971USQU3AZI8

    • F971USQU3AZI8 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

    F971USQU3AZI8 is Android 17 firmware for Samsung Galaxy Z Fold8, released for United States (VZW, XAA). It includes the 2026-09-05 security patch. Samsung built it on 2026-09-15.

    No. A newer build for SM-F971U is available: F971USQS3AZIL. Install it instead of F971USQU3AZI8 unless you need this exact version. The previous build was F971USQU3AZI5.

    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 17.379 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". 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.

    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.

    • 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

    • Stability and reliability
    Device behavior has been improved.

    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.

    No changelog details available.
    No changelog details available.
    Model firmware by region