SM-S911U1 7 countries Android 15

Samsung Galaxy S23 S911U1UES6DYDB Firmware

Samsung Galaxy S23 S911U1UES6DYDB is an Android 15 firmware for 7 countries, 18 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 S911U1UEU6DYD9: security patch 2025-05-01 instead of 2025-04-01. A newer build for SM-S911U1 is available: S911U1UEU8GZIF.

OS updates guaranteed until: Android 17Security updates until: Jan 30, 2028
Download firmware
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Android 15
OS Version
2025-05-28
Build Date
2025-05-01
Security patch
7
Countries
18
CSC codes
6
Bootloader binary

Bootloader binary 6. Flashing firmware with a lower binary is usually blocked by Samsung anti-rollback.

Newer builds of Samsung Galaxy S23 use bootloader binary 8 (latest: S911U1UEU8GZIF). If your device already runs binary 8, 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: S911U1UES6DYDB
    ModelRegionCSC VersionRelease dateSizeFile nameDownload
    SM-S911U1
    ACG, AIO, ATT, CCT, LRA, TFN, TMB, TMK, USC, VZW, XAA, XAR United States
    ATC, CHA, DSA, DSH, FKR, XAG
    		S911U1OYM6DYDB 2025-05-28 9.834 GiB
    SM-S911U1_3_20250506194751_ve4vb1wjag_fac.zip
    		Download

    No matching downloads

    How to flash S911U1UES6DYDB

    • S911U1UES6DYDB has bootloader binary 6. Your device must run binary 6 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 S911U1UES6DYDB

    · The security of your device has been improved.

    Security patch: May 2025

    SMR May-2025 fixes 75 vulnerabilities, 0 of them critical. Android Security Bulletin: 59, Samsung Semiconductor: 3, Samsung-specific issues (SVE): 13.

    Most severe Samsung fixes:

    • high Out-of-bounds write in Keymaster trustlet (CVE-2025-20937)
    • high Improper access control in SmartManagerCN (CVE-2025-20957)
    • high Out-of-bounds write in libsavsvc.so (CVE-2025-20963)

    All fixes and Galaxy models with this patch

    Rollout of S911U1UES6DYDB by region

    Samsung released this build in all regions (18) on the same day, May 28, 2025.

    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

    S911U1UES6DYDB is Android 15 firmware for Samsung Galaxy S23, released for 7 countries, 18 CSC codes. It includes the 2025-05-01 security patch. Samsung built it on 2025-05-28.

    SMR May-2025 fixes 75 vulnerabilities, 0 of them critical. Android Security Bulletin: 59, Samsung Semiconductor: 3, Samsung-specific issues (SVE): 13.

    No. A newer build for SM-S911U1 is available: S911U1UEU8GZIF. Install it instead of S911U1UES6DYDB unless you need this exact version. The previous build was S911U1UEU6DYD9.

    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 9.834 GiB; keep about twice that free on the computer to unzip it. The Samsung Galaxy S23 must be on bootloader binary 6 or lower.

    This build uses bootloader binary 6. It can be flashed on a Samsung Galaxy S23 running binary 6 or lower; if the device already has a higher binary, Odin stops with "SW REV CHECK FAIL". 12 other builds of this model use the same binary, so you can switch between them in both directions.

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    The device is protected with improved security.

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    Model firmware by region