Samsung Galaxy S24 S921EXXS3CZE1
SM-S921E 1 country Android 16

Samsung Galaxy S24 S921EXXS3CZE1 Firmware

Samsung Galaxy S24 S921EXXS3CZE1 is an Android 16 firmware for India (INS). 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 S921EXXU2CZDP: bootloader binary raised from 2 to 3, so after installing it there is no way back to older builds; security patch 2026-05-05 instead of 2026-04-05. A newer build for SM-S921E is available: S921EXXU3DZIF.

OS updates guaranteed until: Android 21Security updates until: Jan 23, 2031
9.1/10 (94)579 times
Android 16
OS Version
2026-05-22
Build Date
2026-05-05
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: S921EXXS3CZE1
    ModelRegionCSC VersionRelease dateSizeFile nameDownload
    SM-S921E
    INS India
    		S921EOXM3CZE1 2026-06-02 16.314 GiB
    SM-S921E_3_20260522212011_pjtt2b5j8g_fac.zip

    No matching downloads

    Device specifications

    • Launched withAndroid 14
    • Display diagonal15.8 cm (6.2")
    • Display resolution2340 x 1080 pixels
    • RAM8 GB
    • RAM typeLPDDR5X
    • Rear camera resolution50 MP
    • Rear camera typeTriple camera
    • Battery capacity4000 mAh
    • Weight167 g

    Specifications of SM-S921B, a regional variant of the same device. Chipset and SIM lines are left out: they can differ by region.

    What's new in S921EXXS3CZE1

    • 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 S921EXXS3CZE1

    • S921EXXS3CZE1 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

    S921EXXS3CZE1 is Android 16 firmware for Samsung Galaxy S24, released for India (INS). It includes the 2026-05-05 security patch. Samsung built it on 2026-05-22.

    No. A newer build for SM-S921E is available: S921EXXU3DZIF. Install it instead of S921EXXS3CZE1 unless you need this exact version. The previous build was S921EXXU2CZDP.

    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 16.314 GiB; keep about twice that free on the computer to unzip it. The Samsung Galaxy S24 must be on bootloader binary 3 or lower.

    This build uses bootloader binary 3. It can be flashed on a Samsung Galaxy S24 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 S24

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    • 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.

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    • Security
    The device is protected with improved security.

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

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    • 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