Samsung Galaxy S21 Ultra 5G G998USQU5EWAI
SM-G998U 2 countries Android 13

Samsung Galaxy S21 Ultra 5G G998USQU5EWAI Firmware

Samsung Galaxy S21 Ultra 5G G998USQU5EWAI is an Android 13 firmware for CHA, United States (CCT, SPR, TMB, USC, VZW). 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 G998USQU5DWA8: security patch 2023-02-01 instead of 2023-01-01. A newer build for SM-G998U is available: G998USQSJHZB1.

OS updates guaranteed until: Android 15. Security updates until: Jan 24, 2026
9.0/10 (483)25,275 times
Android 13
OS Version
2023-02-24
First release
other regions until 2023-02-28
2023-02-01
Security patch
2
Countries
6
CSC codes
5
Bootloader binary

Bootloader binary 5. Flashing firmware with a lower binary is usually blocked by Samsung anti-rollback.

Newer builds of Samsung Galaxy S21 Ultra 5G use bootloader binary J (19) (latest: G998USQSJHZB1). If your device already runs binary J (19), 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: G998USQU5EWAI
    ModelRegionCSC VersionBuild DateRelease dateSizeFile nameDownload
    SM-G998U
    CCT United States
    G998UOYN5EWAI 2023-02-24 2023-02-24 7.118 GiB
    SM-G998U_3_20230201185950_zjn0fgn7va_fac.zip
    SM-G998U
    CHA
    G998UOYN5EWAI 2023-02-24 2023-02-24 7.118 GiB
    SM-G998U_3_20230201183620_ae5o0md3xb_fac.zip
    SM-G998U
    SPR United States
    G998UOYN5EWAI 2023-02-27 2023-02-27 7.192 GiB
    SM-G998U_3_20230202143740_o77q8g90tn_fac.zip
    SM-G998U
    TMB United States
    G998UOYN5EWAI 2023-02-27 2023-02-27 7.152 GiB
    SM-G998U_3_20230201151621_4dfxnuggde_fac.zip
    SM-G998U
    USC United States
    G998UOYN5EWAI 2023-02-27 2023-02-27 7.141 GiB
    SM-G998U_3_20230201164350_gx73scwjjd_fac.zip
    SM-G998U
    VZW United States
    G998UOYN5EWAI 2023-02-28 2023-02-28 7.288 GiB
    SM-G998U_3_20230201181540_2e5ka91j1x_fac.zip

    No matching downloads

    Device specifications

    • Launched withAndroid 11
    • Display diagonal17.3 cm (6.8")
    • Display resolution3200 x 1440 pixels
    • Display typeDynamic AMOLED 2X
    • RAM12 GB
    • Rear camera resolution108 MP
    • Rear camera typeQuad camera
    • Battery capacity5000 mAh
    • Weight228 g

    Specifications of SM-G998, a regional variant of the same device. Chipset and SIM lines are left out: they can differ by region.

    What's new in G998USQU5EWAI

    One UI 5.1 Update

    One UI 5.1 takes your phone to the next level with new Gallery features as well as productivity and personalization enhancements.

    Camera and Gallery

    Quickly change the color tone for selfies
    It's easier to change the color tone of your selfies using the Effects button at the top of the screen.

    More powerful search
    You can now search your Gallery for more than one person or subject at the same time. You can even search for people without tagging their names just by tapping their faces.

    Enhanced image remastering
    Remastering does more to make your pictures look great by removing shadows and reflections. You can also remaster GIFs for better resolution and clarity. Preview has also been improved to make it easier to compare the original picture with the remaster.

    Create a shared family album
    It’s easier than ever to share pictures with your family. Gallery will recommend pictures to add to your shared family album by recognizing the faces of family members you select. You get 5 GB of storage for each family member (up to 6 people).

    Revamped info display
    When you swipe up while viewing a picture or video in your Gallery, you can see when and where the picture was taken, which device took the picture, where the picture is stored, and more. Now with a simpler layout.

    Multitasking

    Easily minimize or switch to full screen
    You can now minimize or maximize an app window without going to the options menu. Just drag one of the corners.

    Access your most used apps in split screen
    When you start a split-screen view, the apps you use most often will be shown below your recently used apps to help you find the apps you need faster.

    Improved multitasking in DeX
    In split-screen view, you can now drag the divider in the center of the screen to resize both windows. You can also snap a window to one of the corners to make it fill a quarter of the screen.

    Modes and Routines

    Change wallpapers based on your mode
    Set a different wallpaper based on your current activity. Choose one wallpaper for work, one for exercising, and more.

    More actions for routines
    New actions let you control Quick Share and Touch sensitivity, change your ringtone, and change your font style.

    Weather

    Quick access to useful information
    Check severe weather alerts, daily weather summaries, and sunrise/sunset times at the top of the Weather app. The temperature graph now uses colors to show how the temperature changes throughout the day.

    Hourly precipitation graph
    An hourly graph now shows how much precipitation has fallen at different times of the day.

    Summary on Weather widget
    A brief summary of the current weather conditions now appears on the weather widget to let you know if it's sunny, cloudy, raining, or snowing.

    Samsung Internet

    Continue browsing on another device
    If you're browsing the web on one Galaxy phone or tablet and later open the Internet app on another Galaxy device signed in to the same Samsung account, a button will appear that lets you open the last webpage you were viewing on the other device.

    Improved search
    Your searches now include the names of bookmark folders and tab groups. Improved search logic lets you find what you're looking for even if something isn't spelled correctly.

    Additional changes

    Check the battery level of your devices
    The new Battery widget lets you check the battery level of your devices, right from the Home screen. You can see how much battery is left on your phone, Galaxy Buds, Galaxy Watch, and other supported devices.

    Settings suggestions
    While signed in to your Samsung account, suggestions will appear at the top of the Settings screen to help you share, connect, and enhance your experience across your Galaxy devices.

    Spotify suggestions
    The Smart suggestions widget now recommends Spotify tracks and playlists based on your current activity. Get the perfect tunes for driving, exercising, and more. To get suggestions, you need to sign in to a Spotify account in the latest version of the Spotify app.

    Choose where to save screenshots and screen recordings
    You can now change the folder where screenshots and screen recordings are saved.

    How to flash G998USQU5EWAI

    • G998USQU5EWAI has bootloader binary 5. Your device must run binary 5 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

    G998USQU5EWAI is Android 13 firmware for Samsung Galaxy S21 Ultra 5G, released for CHA, United States (CCT, SPR, TMB, USC, VZW). It includes the 2023-02-01 security patch. Samsung built it on 2023-02-24.

    No. A newer build for SM-G998U is available: G998USQSJHZB1. Install it instead of G998USQU5EWAI unless you need this exact version. The previous build was G998USQU5DWA8.

    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 S21 Ultra 5G must be on bootloader binary 5 or lower.

    This build uses bootloader binary 5. It can be flashed on a Samsung Galaxy S21 Ultra 5G running binary 5 or lower; if the device already has a higher binary, Odin stops with "SW REV CHECK FAIL". 26 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 S21 Ultra 5G

    • 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.

    • 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 15 older builds

    • The security of your device has been improved.

    One UI 7.0 Upgrade (Android 15)
    Bold new look

    Visual enhancements
    Enjoy a more sophisticated and unique look. One UI 7 introduces a stunning redesign to key components including buttons, menus, notifications and control bars, providing a more consistent visual experience with curves and circles. Beautiful new colors, soft animations, and an innovative blur effect that's unique to One UI make information hierarchy clearer and help you focus on important information.

    Reimagined Home screen
    Fr...

    • The security of your device has been improved.

    • The security of your device has been improved.

    • The security of your device has been improved.

    • The security of your device has been improved.

    • The security of your device has been improved.

    • The security of your device has been improved.

    One UI 6.1 Upgrade
    Create epic images

    Effortlessly enhance your photos
    Get special AI recommendations for enhancing your photos and videos. You'll find options for adding star trails, colorizing, and more. Suggestions appear when you tap the i button in Gallery.

    Copy and paste from one image to another
    Add a missing element to your picture. Just clip an object from an image in Gallery, then go to the image where you want to paste it and choose Paste from clipboard in the More options menu....

    • Stability and reliability
    Device behavior has been improved.
    • Security
    The device is protected with improved security.

    • The security of your device has been improved.

    • The security of your device has been improved.

    • The security of your device has been improved.

    One UI 6.1 Upgrade
    Circle to Search

    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.

    Create epic images

    Effortlessly enhance your photos
    Get special AI recommendations for enhancing your photos and videos. You'll find options for adding star trails, colorizing,...

    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...