Samsung Galaxy S23 S911CONS1DZB4
SM-S911C 2 countries Android 16

Samsung Galaxy S23 S911CONS1DZB4 Firmware

Samsung Galaxy S23 S911CONS1DZB4 is an Android 16 firmware for RKT, SJP. 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 S911CONU1DYJ3: security patch 2026-02-05 instead of 2025-09-01. A newer build for SM-S911C is available: S911CONS1EZH1.

OS updates guaranteed until: Android 17Security updates until: Jan 26, 2028
9.0/10 (130)1,523 times
Android 16
OS Version
2026-03-31
Build Date
2026-02-05
Security patch
2
Countries
2
CSC codes
1
Bootloader binary

Bootloader binary 1. 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: S911CONS1DZB4
    ModelRegionCSC VersionRelease dateSizeFile nameDownload
    SM-S911C
    RKT, SJP
    		S911CQKT1DZB4 2026-04-01 10.091 GiB
    SM-S911C_4_20260215203231_46qqeguky5_fac.zip

    No matching downloads

    How to flash S911CONS1DZB4

    • S911CONS1DZB4 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.

    What's new in S911CONS1DZB4

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

    Security patch: February 2026

    SMR Feb-2026 fixes 32 vulnerabilities, 0 of them critical. Android Security Bulletin: 25, Samsung-specific issues (SVE): 7.

    Most severe Samsung fixes:

    • high Improper access control in Emergency Sharing prior to SMR Feb-2026 Release 1 allows local attackers to interrupt its functioning. (CVE-2026-20977)
    • high Improper export of android application components in Samsung Dialer prior to SMR Feb-2026 Release 1 allows local attackers to launch arbitrary activity with Samsung Dialer privilege. (CVE-2026-20983)
    • high Improper authorization in KnoxGuardManager prior to SMR Feb-2026 Release 1 allows local attackers to bypass the persistence configuration of the application. (CVE-2026-20978)

    All fixes and Galaxy models with this patch

    Rollout of S911CONS1DZB4 by region

    Samsung released this build in all regions (2) on the same day, April 1, 2026.

    Device specifications

    • Launched withAndroid 13
    • Display diagonal15.5 cm (6.1")
    • Display resolution2340 x 1080 pixels
    • RAM8 GB
    • Rear camera resolution50 MP
    • Rear camera typeTriple camera
    • Battery capacity3900 mAh
    • Weight168 g

    Specifications of SM-S911B, a regional variant of the same device. Chipset and SIM lines are left out: they can differ by region.

    Frequently Asked Questions

    S911CONS1DZB4 is Android 16 firmware for Samsung Galaxy S23, released for RKT, SJP. It includes the 2026-02-05 security patch. Samsung built it on 2026-03-31.

    SMR Feb-2026 fixes 32 vulnerabilities, 0 of them critical. Android Security Bulletin: 25, Samsung-specific issues (SVE): 7.

    No. A newer build for SM-S911C is available: S911CONS1EZH1. Install it instead of S911CONS1DZB4 unless you need this exact version. The previous build was S911CONU1DYJ3.

    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 10.091 GiB; keep about twice that free on the computer to unzip it. The Samsung Galaxy S23 must be on bootloader binary 1 or lower.

    This build uses bootloader binary 1. It can be flashed on a Samsung Galaxy S23 running binary 1 or lower; if the device already has a higher binary, Odin stops with "SW REV CHECK FAIL". 20 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 S23

    • Security
    The device is protected with improved security.

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

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

    One UI 8.0 (Android 16)
    Galaxy AI

    See calls on the screen
    Call captions show what each person says on the screen in real time during calls. Follow the conversation on your screen to make sure you don’t miss anything.

    Create unique pet portraits
    Bring out your pet's personality with Portrait studio. You can now apply portrait effects to pictures of dogs and cats in addition to people. Choose from styles like Fisheye lens, oil painting, and more.

    Translate emergency alerts
    Never miss importa...

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

    One UI 7.0 Upgrade (Android 15)
    Galaxy AI

    Write like a pro
    Let Galaxy AI help you with writing tasks by tapping the 4-star icon that appears whenever you select text. You can correct spelling and grammar, change tone, summarize, or apply formatting. You can even start with a short snippet and let the AI do the writing for you.

    Transcribe and summarize recorded calls
    It's easier than ever to review the content of your recorded calls in the Samsung Phone app. You can view the entire conversat...

    Show 13 older builds

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

    One UI 6.1 Upgrade
    Galaxy AI

    Instantly search for anything on your screen
    Circle to Search with Google lets you easily learn more about anything shown on your screen without switching apps. Just touch and hold the Home button or navigation handle, then circle anything on the screen to start a Google search.

    Translate phone calls in real time
    Need to call someone who doesn't speak your language? No problem! Live translate provides real-time translation during calls. The other person on the c...

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

    One UI 6.0 Upgrade
    Quick panel

    New button layout
    The quick panel has a new layout that makes it easier to access the features you use most. Wi-Fi and Bluetooth now have their own dedicated buttons at the top of the screen, while visual features, like Dark mode and Eye comfort shield have been moved to the bottom. Other quick settings buttons appear in a customizable area in the middle.

    Instantly access the full quick panel
    By default, a compact quick panel with notifications appears when yo...

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

    Model firmware by region