Samsung Galaxy S24 FE S721USQSBCZD1
SM-S721U 3 countries Android 16

Samsung Galaxy S24 FE S721USQSBCZD1 Firmware

Samsung Galaxy S24 FE S721USQSBCZD1 is an Android 16 firmware for ASR, CHA, United States (AIO, ATT, TMB, TMK, USC, 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 S721USQSACZC2: bootloader binary raised from A (10) to B (11), so after installing it there is no way back to older builds; security patch 2026-04-05 instead of 2026-03-05. A newer build for SM-S721U is available: S721USQUEEZIF.

OS updates guaranteed until: Android 21Security updates until: Oct 25, 2031
8.7/10 (111)5,979 times
Android 16
OS Version
2026-04-10
First release
other regions until 2026-04-17
2026-04-05
Security patch
3
Countries
9
CSC codes
B (11)
Bootloader binary

Bootloader binary B (11). 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: S721USQUEEZIF). 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#.
    9
    MODEM/CP Version: S721USQSBCZD1
    ModelRegionCSC VersionBuild DateRelease dateSizeFile nameDownload
    SM-S721U
    AIO United States
    		S721UOYNBCZD1 2026-04-15 2026-04-15 11.91 GiB
    SM-S721U_3_20260403164810_5q8z23o703_fac.zip
    SM-S721U
    ASR
    		S721UOYNBCZD1 2026-04-15 2026-04-16 11.91 GiB
    SM-S721U_3_20260403182610_2l9rxg369p_fac.zip
    SM-S721U
    ATT United States
    		S721UOYNBCZD1 2026-04-15 2026-04-15 11.909 GiB
    SM-S721U_3_20260403161001_cgf7h39wmd_fac.zip
    SM-S721U
    CHA
    		S721UOYNBCZD1 2026-04-16 2026-04-16 11.886 GiB
    SM-S721U_3_20260403172321_04k9ucm9rv_fac.zip
    SM-S721U
    TMB United States
    		S721UOYNBCZD1 2026-04-15 2026-04-16 11.91 GiB
    SM-S721U_3_20260403175841_motv916hvl_fac.zip
    SM-S721U
    TMK United States
    		S721UOYNBCZD1 2026-04-15 2026-04-16 11.91 GiB
    SM-S721U_3_20260403184840_8rnbodtthc_fac.zip
    SM-S721U
    USC United States
    		S721UOYNBCZD1 2026-04-17 2026-04-23 11.899 GiB
    SM-S721U_3_20260403154801_jtzyj49vfp_fac.zip
    SM-S721U
    VZW United States
    		S721UOYNBCZD1 2026-04-16 2026-04-17 11.999 GiB
    SM-S721U_3_20260403150640_w1roam6zmm_fac.zip
    SM-S721U
    XAA United States
    		S721UOYNBCZD1 2026-04-10 2026-04-28 11.999 GiB
    SM-S721U_1_20260410143151_nubouvf4je_fac.zip

    No matching downloads

    How to flash S721USQSBCZD1

    • S721USQSBCZD1 has bootloader binary B (11). Your device must run binary B (11) 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 S721USQSBCZD1

    • 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: April 2026

    SMR Apr-2026 fixes 44 vulnerabilities, 14 of them critical. Android Security Bulletin: 33, Samsung Semiconductor: 4, Samsung-specific issues (SVE): 7.

    Most severe Samsung fixes:

    • high Improper check for exceptional conditions in Device Care prior to SMR Apr-2026 Release 1 allows physical attackers to bypass Knox Guard. (CVE-2026-21007)
    • high Improper input validation in Retail Mode prior to SMR Apr-2026 Release 1 allows local attackers to trigger privileged functions. (CVE-2026-21010)

    All fixes and Galaxy models with this patch

    Rollout of S721USQSBCZD1 by region

    First release
    April 15, 2026
    Last region
    April 28, 2026
    Duration
    14 days
    Regions
    9
    1. Day 1 · · 2 regions
      United StatesAIOATT
    2. Day 2 · · 4 regions
      United StatesTMBTMKASRCHA
    3. Day 3 · · 1 region
      United StatesVZW
    4. Day 9 · · 1 region
      United StatesUSC
    5. Day 14 · · 1 region
      United StatesXAA

    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

    S721USQSBCZD1 is Android 16 firmware for Samsung Galaxy S24 FE, released for ASR, CHA, United States (AIO, ATT, TMB, TMK, USC, VZW, XAA). It includes the 2026-04-05 security patch. Samsung built it on 2026-04-10.

    SMR Apr-2026 fixes 44 vulnerabilities, 14 of them critical. Android Security Bulletin: 33, Samsung Semiconductor: 4, Samsung-specific issues (SVE): 7.

    No. A newer build for SM-S721U is available: S721USQUEEZIF. Install it instead of S721USQSBCZD1 unless you need this exact version. The previous build was S721USQSACZC2.

    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 S24 FE must be on bootloader binary B (11) or lower.

    This build uses bootloader binary B (11). It can be flashed on a Samsung Galaxy S24 FE running binary B (11) 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

    One UI 9
    Galaxy AI

    Enhanced Now nudge
    Now nudge provides helpful suggestions in more places throughout your Galaxy experience. In addition to the keyboard, suggestions will now appear in conversation notifications and in a floating button in the bottom right corner of the screen. There are also several new types of suggestions, like addresses or saving places in Google Maps.

    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