Samsung Galaxy S25 S931USQS6BYIF
SM-S931U 5 countries Android 16

Samsung Galaxy S25 S931USQS6BYIF Firmware

Samsung Galaxy S25 S931USQS6BYIF is an Android 16 firmware for 5 countries, 12 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 S931USQU5BYI3: bootloader binary raised from 5 to 6, so after installing it there is no way back to older builds; security patch 2025-10-01 instead of 2025-09-01. A newer build for SM-S931U is available: S931USQSDDZJ1.

OS updates guaranteed until: Android 22Security updates until: Jan 30, 2032
Download firmware
8.7/10 (212)15,282 times
Android 16
OS Version
2025-10-22
First release
other regions until 2025-10-24
2025-10-01
Security patch
5
Countries
12
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 S25 use bootloader binary D (13) (latest: S931USQSDDZJ1). If your device already runs binary D (13), 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#.
    12
    MODEM/CP Version: S931USQS6BYIF
    ModelRegionCSC VersionBuild DateRelease dateSizeFile nameDownload
    SM-S931U
    AIO United States
    		S931UOYN6BYIF 2025-10-22 2025-10-22 16.9 GiB
    SM-S931U_2_20251017051811_ooecp8qmoa_fac.zip
    		Download
    SM-S931U
    ATT United States
    		S931UOYN6BYIF 2025-10-22 2025-10-22 16.912 GiB
    SM-S931U_2_20251017064141_t41snfcqvo_fac.zip
    		Download
    SM-S931U
    CCT United States
    		S931UOYN6BYIF 2025-10-24 2025-10-27 16.912 GiB
    SM-S931U_2_20251017124601_8izba1z5gs_fac.zip
    		Download
    SM-S931U
    CHA
    		S931UOYN6BYIF 2025-10-24 2025-10-27 16.912 GiB
    SM-S931U_2_20251017134421_out8l8a5l3_fac.zip
    		Download
    SM-S931U
    DSA
    		S931UOYN6BYIF 2025-10-23 2025-10-24 16.912 GiB
    SM-S931U_2_20251017091501_6h49wwy0go_fac.zip
    		Download
    SM-S931U
    DSG
    		S931UOYN6BYIF 2025-10-23 2025-10-24 16.912 GiB
    SM-S931U_2_20251017100841_b68lwsirfc_fac.zip
    		Download
    SM-S931U
    DSH
    		S931UOYN6BYIF 2025-10-23 2025-10-24 16.912 GiB
    SM-S931U_2_20251017110541_avn8mggkw5_fac.zip
    		Download
    SM-S931U
    TMB United States
    		S931UOYN6BYIF 2025-10-23 2025-10-24 16.912 GiB
    SM-S931U_2_20251017074301_jabkttuwe6_fac.zip
    		Download
    SM-S931U
    TMK United States
    		S931UOYN6BYIF 2025-10-23 2025-10-24 16.912 GiB
    SM-S931U_2_20251017083011_tgji6846k3_fac.zip
    		Download
    SM-S931U
    USC United States
    		S931UOYN6BYIF 2025-10-22 2025-10-30 16.912 GiB
    SM-S931U_2_20251017143550_x96xuhl1pu_fac.zip
    		Download
    SM-S931U
    VZW United States
    		S931UOYN6BYIF 2025-10-24 2025-10-24 16.912 GiB
    SM-S931U_2_20251017115501_fb04txjind_fac.zip
    		Download
    SM-S931U
    XAA United States
    		S931UOYN6BYIF 2025-10-23 2025-10-27 16.912 GiB
    SM-S931U_2_20251018031411_ufowlq8fl2_fac.zip
    		Download

    No matching downloads

    How to flash S931USQS6BYIF

    • S931USQS6BYIF 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 S931USQS6BYIF

    • 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: October 2025

    SMR Oct-2025 fixes 25 vulnerabilities, 0 of them critical. Android Security Bulletin: 13, Samsung-specific issues (SVE): 12.

    Most severe Samsung fixes:

    • high Out-of-bounds write in fingerprint trustlet (CVE-2025-21044)
    • high Improper input validation in Contacts (CVE-2025-21050)
    • high Relative path traversal in Knox Enterprise (CVE-2025-21048)

    All fixes and Galaxy models with this patch

    Rollout of S931USQS6BYIF by region

    First release
    October 22, 2025
    Last region
    October 30, 2025
    Duration
    9 days
    Regions
    12
    1. Day 1 · · 2 regions
      United StatesAIOATT
    2. Day 3 · · 6 regions
      United StatesTMBTMKVZWDSADSGDSH
    3. Day 6 · · 3 regions
      United StatesCCTXAACHA
    4. Day 9 · · 1 region
      United StatesUSC

    Device specifications

    • Launched withAndroid 15
    • Display diagonal15.8 cm (6.2")
    • Display resolution2340 x 1080 pixels
    • RAM12 GB
    • Rear camera resolution50 MP
    • Rear camera typeTriple camera
    • Battery capacity4000 mAh
    • Weight162 g

    Specifications of SM-S931B, a regional variant of the same device. Chipset and SIM lines are left out: they can differ by region.

    Frequently Asked Questions

    S931USQS6BYIF is Android 16 firmware for Samsung Galaxy S25, released for 5 countries, 12 CSC codes. It includes the 2025-10-01 security patch. Samsung built it on 2025-10-22.

    SMR Oct-2025 fixes 25 vulnerabilities, 0 of them critical. Android Security Bulletin: 13, Samsung-specific issues (SVE): 12.

    No. A newer build for SM-S931U is available: S931USQSDDZJ1. Install it instead of S931USQS6BYIF unless you need this exact version. The previous build was S931USQU5BYI3.

    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 S25 must be on bootloader binary 6 or lower.

    This build uses bootloader binary 6. It can be flashed on a Samsung Galaxy S25 running binary 6 or lower; if the device already has a higher binary, Odin stops with "SW REV CHECK FAIL". No other build of this model uses binary 6.

    Other builds and changelog for Samsung Galaxy S25

    • 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 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 entering reservation details or addresses and saving places in Google Maps.

    Focus on someone important
    My FanCam lets you select a person in a video and follow...

    • 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.

    Show 5 older builds
    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.

    Clean up sound
    Use Audio eraser to automatica...

    • 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