Samsung Galaxy S24 FE S721USQSACZC2
SM-S721U 1 country Android 16

Samsung Galaxy S24 FE S721USQSACZC2 Firmware

Samsung Galaxy S24 FE S721USQSACZC2 is an Android 16 firmware for United States (CCT, 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 S721USQSACZC1, Android and the bootloader binary are unchanged, so you can switch between the two in both directions. A newer build for SM-S721U is available: S721USQSEEZJ1.

OS updates guaranteed until: Android 21Security updates until: Oct 30, 2031
Download firmware
9.1/10 (121)1,510 times
Android 16
OS Version
2026-03-31
Build Date
2026-03-05
Security patch
1
Countries
2
CSC codes
A (10)
Bootloader binary

Bootloader binary A (10). Flashing firmware with a lower binary is usually blocked by Samsung anti-rollback.

Newer builds of Samsung Galaxy S24 FE use bootloader binary E (14) (latest: S721USQSEEZJ1). If your device already runs binary E (14), 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#.
    MODEM/CP Version: S721USQSACZC2
    ModelRegionCSC VersionBuild DateRelease dateSizeFile nameDownload
    SM-S721U
    CCT United States
    		S721UOYNACZC2 2026-03-31 2026-03-31 12.119 GiB
    SM-S721U_3_20260312000021_43naqihmad_fac.zip
    		Download
    SM-S721U
    XAA United States
    		S721UOYNACZC2 2026-03-31 2026-03-31 12.119 GiB
    SM-S721U_1_20260316185911_srczo5skch_fac.zip
    		Download

    No matching downloads

    How to flash S721USQSACZC2

    • S721USQSACZC2 has bootloader binary A (10). Your device must run binary A (10) 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 S721USQSACZC2

    • 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: March 2026

    SMR Mar-2026 fixes 65 vulnerabilities, 8 of them critical. Android Security Bulletin: 59, Samsung-specific issues (SVE): 6.

    Most severe Samsung fixes:

    • high Improper verification of intent by broadcast receiver in Settings prior to SMR Mar-2026 Release 1 allows local attacker to launch arbitrary activity with Settings privilege. User interaction is required for triggering this vulnerability. (CVE-2026-20988)
    • high Improper export of android application components in Secure Folder prior to SMR Mar-2026 Release 1 allows local attackers to launch arbitrary activity with Secure Folder privilege. (CVE-2026-20990)

    All fixes and Galaxy models with this patch

    Rollout of S721USQSACZC2 by region

    Samsung released this build in all regions (2) on the same day, March 31, 2026.

    Device specifications

    • Launched withAndroid 14
    • Display diagonal17 cm (6.7")
    • Display resolution1080 x 2340 pixels
    • RAM8 GB
    • Rear camera resolution50 MP
    • Rear camera typeTriple camera
    • Battery capacity4700 mAh
    • Weight213 g

    Specifications of SM-S721B, a regional variant of the same device. Chipset and SIM lines are left out: they can differ by region.

    Frequently Asked Questions

    S721USQSACZC2 is Android 16 firmware for Samsung Galaxy S24 FE, released for United States (CCT, XAA). It includes the 2026-03-05 security patch. Samsung built it on 2026-03-31.

    SMR Mar-2026 fixes 65 vulnerabilities, 8 of them critical. Android Security Bulletin: 59, Samsung-specific issues (SVE): 6.

    No. A newer build for SM-S721U is available: S721USQSEEZJ1. Install it instead of S721USQSACZC2 unless you need this exact version. The previous build was S721USQSACZC1.

    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 12.119 GiB; keep about twice that free on the computer to unzip it. The Samsung Galaxy S24 FE must be on bootloader binary A (10) or lower.

    This build uses bootloader binary A (10). It can be flashed on a Samsung Galaxy S24 FE running binary A (10) or lower; if the device already has a higher binary, Odin stops with "SW REV CHECK FAIL". 3 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 FE

    • 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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    Galaxy AI

    Enhanced Now nudge
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    Focus on someone important
    My FanCam lets you select a person in a video and follow them automatically while cropping...

    • Security
    The device is protected with improved security.

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

    One UI 8.5
    Visual design

    Fresh new look
    One UI seamlessly integrates into your daily routine by combining immersive visuals with meaningful personalization for a more refined and sophisticated design. Transparent blur effects add depth and make content easier to navigate, while floating elements react organically to your workflow for a more focused experience. Through familiar and intuitive data visualization, One UI delivers a design that feels both personal and relatable, helping you focus...

    • 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