Samsung Galaxy Z Fold3 5G F926BTBU1AUI4
SM-F926B 4 countries Android 11

Samsung Galaxy Z Fold3 5G F926BTBU1AUI4 Firmware

Samsung Galaxy Z Fold3 5G F926BTBU1AUI4 is an Android 11 firmware for 4 countries, 4 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 F926BXXU1AUI4, Android and the bootloader binary are unchanged, so you can switch between the two in both directions. A newer build for SM-F926B is available: F926BXXSJJZH4.

OS updates guaranteed until: Android 15Security updates until: Aug 23, 2026
8.9/10 (494)17,208 times
Android 11
OS Version
2021-09-28
First release
other regions until 2021-10-05
2021-09-01
Security patch
4
Countries
4
CSC codes
1
Bootloader binary

Bootloader binary 1. Flashing firmware with a lower binary is usually blocked by Samsung anti-rollback.

Newer builds of Samsung Galaxy Z Fold3 5G use bootloader binary J (19) (latest: F926BXXSJJZH4). If your device already runs binary J (19), 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#.
    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.
    MODEM/CP Version: F926BXXU1AUHD
    ModelRegionCSC VersionBuild DateRelease dateSizeFile nameDownload
    SM-F926B
    THL Thailand
    XSA Australia
    XXV Vietnam
    		F926BOXT1AUI4 2021-09-28 2021-09-28 6.624 GiB
    SM-F926B_10_20210914124706_5wjen8vv0o_fac.zip
    SM-F926B
    XID Indonesia
    		F926BOLP1AUI4 2021-10-05 2021-10-05 6.348 GiB
    SM-F926B_10_20210914130804_5cf2y4cdys_fac.zip

    No matching downloads

    Device specifications

    • Launched withAndroid 11
    • Display diagonal19.3 cm (7.6")
    • Display resolution2208 x 1768 pixels
    • Processor frequency2.4 GHz
    • Processor familySnapdragon
    • Processor model888
    • RAM12 GB
    • RAM typeLPDDR5
    • Rear camera resolution12 MP
    • Rear camera typeTriple camera
    • SIM cardsDual SIM
    • Battery capacity4400 mAh
    • Weight271 g

    What's new in F926BTBU1AUI4

    · Device stability improvements, bug fixes.
    · New and / or enhanced features.
    · Further improvements to performance.

    How to flash F926BTBU1AUI4

    • F926BTBU1AUI4 has bootloader binary 1. Your device must run binary 1 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

    F926BTBU1AUI4 is Android 11 firmware for Samsung Galaxy Z Fold3 5G, released for 4 countries, 4 CSC codes. It includes the 2021-09-01 security patch. Samsung built it on 2021-09-28.

    No. A newer build for SM-F926B is available: F926BXXSJJZH4. Install it instead of F926BTBU1AUI4 unless you need this exact version. The previous build was F926BXXU1AUI4.

    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 Fold3 5G must be on bootloader binary 1 or lower.

    This build uses bootloader binary 1. It can be flashed on a Samsung Galaxy Z Fold3 5G running binary 1 or lower; if the device already has a higher binary, Odin stops with "SW REV CHECK FAIL". 40 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 Fold3 5G

    • 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.

    • Security
    The device is protected with improved security.

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

    No changelog details available.
    Show 15 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.

    • 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.

    • 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.

    • 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.

    • 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.

    • 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.

    Model firmware by region