Samsung Galaxy S21 5G G991WVLSGHYF3
SM-G991W 3 countries Android 15

Samsung Galaxy S21 5G G991WVLSGHYF3 Firmware

Samsung Galaxy S21 5G G991WVLSGHYF3 is an Android 15 firmware for Canada (BMC, BWA, CHR, ESK, FMC, GLW, KDO, PCM, PMB, RWC, SOL, TLS, VMC, VTR, XAC), FIZ, TBT. 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 G991WVLUEHYDA: bootloader binary raised from E (14) to G (16), so after installing it there is no way back to older builds. A newer build for SM-G991W is available: G991WVLSJHZAA.

OS updates guaranteed until: Android 15Security updates until: Jan 29, 2026
Download firmware
9.0/10 (255)25,524 times
Android 15
OS Version
2025-07-11
Build Date
3
Countries
17
CSC codes
G (16)
Bootloader binary

Bootloader binary G (16). Flashing firmware with a lower binary is usually blocked by Samsung anti-rollback.

Newer builds of Samsung Galaxy S21 5G use bootloader binary J (19) (latest: G991WVLSJHZAA). 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: G991WVLSGHYF3
    ModelRegionCSC VersionRelease dateSizeFile nameDownload
    SM-G991W
    BMC, BWA, CHR, ESK, FMC, GLW, KDO, PCM, PMB, RWC, SOL, TLS, VMC, VTR, XAC Canada
    FIZ, TBT
    		G991WOYVGHYF3 2025-07-11 7.99 GiB
    SM-G991W_5_20250617151311_ys1xmsmysm_fac.zip

    No matching downloads

    How to flash G991WVLSGHYF3

    • G991WVLSGHYF3 has bootloader binary G (16). Your device must run binary G (16) 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 G991WVLSGHYF3 by region

    Samsung released this build in all regions (17) on the same day, July 11, 2025.

    Device specifications

    • Display diagonal15.8 cm (6.2")
    • Display resolution2400 x 1080 pixels
    • Display typeDynamic AMOLED 2X
    • RAM8 GB
    • Rear camera resolution12 MP
    • Rear camera typeTriple camera
    • Battery capacity4000 mAh
    • Weight171 g

    Specifications of SM-G991, a regional variant of the same device. Chipset and SIM lines are left out: they can differ by region.

    Frequently Asked Questions

    G991WVLSGHYF3 is Android 15 firmware for Samsung Galaxy S21 5G, released for Canada (BMC, BWA, CHR, ESK, FMC, GLW, KDO, PCM, PMB, RWC, SOL, TLS, VMC, VTR, XAC), FIZ, TBT. Samsung built it on 2025-07-11.

    No. A newer build for SM-G991W is available: G991WVLSJHZAA. Install it instead of G991WVLSGHYF3 unless you need this exact version. The previous build was G991WVLUEHYDA.

    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 7.99 GiB; keep about twice that free on the computer to unzip it. The Samsung Galaxy S21 5G must be on bootloader binary G (16) or lower.

    This build uses bootloader binary G (16). It can be flashed on a Samsung Galaxy S21 5G running binary G (16) 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 G (16).

    Other builds and changelog for Samsung Galaxy S21 5G

    No changelog details available.
    Model firmware by region