Samsung Galaxy S21 Ultra 5G G998WVLS4BUKK
SM-G998W 3 countries Android 12

Samsung Galaxy S21 Ultra 5G G998WVLS4BUKK Firmware

Samsung Galaxy S21 Ultra 5G G998WVLS4BUKK is an Android 12 firmware for Canada (BMC, BWA, CHR, ESK, FMC, GLW, KDO, PCM, PMB, RWC, SOL, TLS, VMC, VTR, XAC), SJR, XPL. 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 G998WVLU4BUKF, Android and the bootloader binary are unchanged, so you can switch between the two in both directions. A newer build for SM-G998W is available: G998WVLSJHZAA.

OS updates guaranteed until: Android 15Security updates until: Jan 29, 2026
Download firmware
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Android 12
OS Version
2021-12-22
First release
other regions until 2022-01-11
3
Countries
17
CSC codes
4
Bootloader binary

Bootloader binary 4. 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: G998WVLSJHZAA). 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: G998WVLS4BUKK
    ModelRegionCSC VersionRelease dateSizeFile nameDownload
    SM-G998W
    BMC, BWA, CHR, ESK, FMC, GLW, KDO, PCM, PMB, RWC, SOL, TLS, VMC, VTR, XAC Canada
    SJR, XPL
    		G998WOYV4BUKK 2022-01-11 6.71 GiB
    SM-G998W_2_20211222225901_fqqi5er8x1_fac.zip
    		Download

    No matching downloads

    How to flash G998WVLS4BUKK

    • G998WVLS4BUKK has bootloader binary 4. Your device must run binary 4 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.

    Rollout of G998WVLS4BUKK by region

    Samsung released this build in all regions (17) on the same day, January 11, 2022.

    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.

    Frequently Asked Questions

    G998WVLS4BUKK is Android 12 firmware for Samsung Galaxy S21 Ultra 5G, released for Canada (BMC, BWA, CHR, ESK, FMC, GLW, KDO, PCM, PMB, RWC, SOL, TLS, VMC, VTR, XAC), SJR, XPL. Samsung built it on 2021-12-22.

    No. A newer build for SM-G998W is available: G998WVLSJHZAA. Install it instead of G998WVLS4BUKK unless you need this exact version. The previous build was G998WVLU4BUKF.

    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 6.71 GiB; keep about twice that free on the computer to unzip it. The Samsung Galaxy S21 Ultra 5G must be on bootloader binary 4 or lower.

    This build uses bootloader binary 4. It can be flashed on a Samsung Galaxy S21 Ultra 5G running binary 4 or lower; if the device already has a higher binary, Odin stops with "SW REV CHECK FAIL". 6 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

    No changelog details available.
    Model firmware by region