Samsung Galaxy S26 Ultra S948USQU2AZDI
SM-S948U 6 countries Android 16

Samsung Galaxy S26 Ultra S948USQU2AZDI Firmware

Samsung Galaxy S26 Ultra S948USQU2AZDI is an Android 16 firmware for 6 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 S948USQS2AZDH, Android and the bootloader binary are unchanged, so you can switch between the two in both directions. A newer build for SM-S948U is available: S948USQS4BZIG.

OS updates guaranteed until: Android 23Security updates until: Feb 23, 2033
9.1/10 (30)2,830 times
Android 16
OS Version
2026-04-24
First release
other regions until 2026-04-25
2026-04-05
Security patch
6
Countries
12
CSC codes
2
Bootloader binary

Bootloader binary 2. Flashing firmware with a lower binary is usually blocked by Samsung anti-rollback.

Newer builds of Samsung Galaxy S26 Ultra use bootloader binary 4 (latest: S948USQS4BZIG). If your device already runs binary 4, 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#.
    3
    MODEM/CP Version: S948USQU2AZDI
    ModelRegionCSC VersionBuild DateRelease dateSizeFile nameDownload
    SM-S948U
    AIO, ATT United States
    DSA, DSG, SPT
    		S948UOYN2AZDI 2026-04-25 2026-05-04 18.125 GiB
    SM-S948U_1_20260425021041_l80nkga99i_fac.zip
    SM-S948U
    CCT, TMB, TMK, VZW United States
    CHA, DSH
    		S948UOYN2AZDI 2026-04-24 2026-05-05 18.258 GiB
    SM-S948U_1_20260424232130_ecxye4o8jx_fac.zip
    SM-S948U
    USC United States
    		S948UOYN2AZDI 2026-04-25 2026-05-11 18.259 GiB
    SM-S948U_1_20260425002541_8vrbi6pvot_fac.zip

    No matching downloads

    Device specifications

    • Launched withAndroid 16.0
    • Display diagonal17.5 cm (6.9")
    • Display resolution3120 x 1440 pixels
    • RAM12 GB
    • Rear camera resolution200 MP
    • Rear camera typeQuad camera
    • Battery capacity5000 mAh
    • Weight214 g

    Specifications of SM-S948B, a regional variant of the same device. Chipset and SIM lines are left out: they can differ by region.

    What's new in S948USQU2AZDI

    • Stability and reliability
    Device behavior has been improved.

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

    How to flash S948USQU2AZDI

    • S948USQU2AZDI has bootloader binary 2. Your device must run binary 2 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.

    Frequently Asked Questions

    S948USQU2AZDI is Android 16 firmware for Samsung Galaxy S26 Ultra, released for 6 countries, 12 CSC codes. It includes the 2026-04-05 security patch. Samsung built it on 2026-04-24.

    No. A newer build for SM-S948U is available: S948USQS4BZIG. Install it instead of S948USQU2AZDI unless you need this exact version. The previous build was S948USQS2AZDH.

    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 S26 Ultra must be on bootloader binary 2 or lower.

    This build uses bootloader binary 2. It can be flashed on a Samsung Galaxy S26 Ultra running binary 2 or lower; if the device already has a higher binary, Odin stops with "SW REV CHECK FAIL". 5 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 S26 Ultra

    • 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.

    • 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.

    Show 11 older builds

    • Security
    The device is protected with improved security.

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

    • Stability and reliability
    Device behavior has been improved.

    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.

    • 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.

    • Security
    The device is protected with improved security.

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

    • Stability and reliability
    Device behavior has been improved.

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

    • Stability and reliability
    Device behavior has been improved.

    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.

    • Security
    The device is protected with improved security.

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

    No changelog details available.
    Model firmware by region