Samsung Galaxy S20 FE 5G G781BXXS4CUJ2
SM-G781B 31 countries Android 11

Samsung Galaxy S20 FE 5G G781BXXS4CUJ2 Firmware

Samsung Galaxy S20 FE 5G G781BXXS4CUJ2 is an Android 11 firmware for 31 countries, 62 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 G781BXXS4CUI1: security patch 2021-11-01 instead of 2021-10-01. A newer build for SM-G781B is available: G781BXXSIHYJ4.

OS updates guaranteed until: Android 13Security updates until: Oct 23, 2025
9.1/10 (485)274,706 times
Android 11
OS Version
2021-11-04
First release
other regions until 2021-12-03
2021-11-01
Security patch
31
Countries
62
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 S20 FE 5G use bootloader binary I (18) (latest: G781BXXSIHYJ4). If your device already runs binary I (18), 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#.
    Your CSC is in Settings → About phone (About tablet) → Software information, or dial *#1234#. The CSC sets your region's features and network bands. Download the firmware for your country.
    4
    MODEM/CP Version: G781BXXU4CUH5
    ModelRegionCSC VersionBuild DateRelease dateSizeFile nameDownload
    SM-G781B
    3IE, MET, VDI Ireland
    AMO, ATL, PHE, XEC Spain
    ATO Austria
    AUT, SWC Switzerland
    +16 more countries
    BOG, FTM, SFR, XEF France
    BRI Taiwan
    BTU, EVR, H3G, O2U, VOD United Kingdom
    CNX, ORO, ROM Romania
    DBT, VD2 Germany
    EUR Greece
    ITV Italy
    LUX Luxembourg
    MEO, TCL, TPH Portugal
    MOT, SIO Slovenia
    NEE Nordic Europe
    O2C, XEZ Czechia
    OPV, PLS, PRT, XEO Poland
    PHN, VDF Netherlands
    SEB Baltic Europe
    BTB, BTE
    		G781BOXM4CUH5 2021-11-18 2021-11-05 6.384 GiB
    SM-G781B_1_20211021191645_z0jp4thv9g_fac.zip
    SM-G781B
    GLB, XTC Philippines
    MM1, SIN, STH, XSP Singapore
    OPS, TEL, VAU, XSA Australia
    THL Thailand
    +1 more country
    XME Malaysia
    		G781BOLM4CUH5 2021-12-03 2021-11-22 5.899 GiB
    SM-G781B_1_20211103012536_vqt4a5nfim_fac.zip
    SM-G781B
    ILO Israel
    KSA Saudi Arabia
    XSG United Arab Emirates
    		G781BOJM4CUG4 2021-11-10 2021-11-10 5.747 GiB
    SM-G781B_1_20211021194415_aztbj7u533_fac.zip
    SM-G781B
    INS India
    SLK Sri Lanka
    		G781BODM4CUH3 2021-12-01 2021-12-02 5.854 GiB
    SM-G781B_1_20211111215700_ux7xqpnory_fac.zip

    No matching downloads

    Device specifications

    • Launched withAndroid 10.0
    • Display diagonal16.5 cm (6.5")
    • Display resolution2400 x 1080 pixels
    • Display typeSAMOLED
    • Processor frequency2.8 GHz
    • Processor familyQualcomm Snapdragon
    • Processor model865
    • RAM6 GB
    • RAM typeLPDDR5
    • Rear camera resolution12 MP
    • Rear camera typeTriple camera
    • Battery capacity4500 mAh
    • Weight190 g

    What's new in G781BXXS4CUJ2

    • The security of your device has been improved.

    How to flash G781BXXS4CUJ2

    • G781BXXS4CUJ2 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.

    Frequently Asked Questions

    G781BXXS4CUJ2 is Android 11 firmware for Samsung Galaxy S20 FE 5G, released for 31 countries, 62 CSC codes. It includes the 2021-11-01 security patch. Samsung built it on 2021-11-04.

    No. A newer build for SM-G781B is available: G781BXXSIHYJ4. Install it instead of G781BXXS4CUJ2 unless you need this exact version. The previous build was G781BXXS4CUI1.

    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 S20 FE 5G must be on bootloader binary 4 or lower.

    This build uses bootloader binary 4. It can be flashed on a Samsung Galaxy S20 FE 5G running binary 4 or lower; if the device already has a higher binary, Odin stops with "SW REV CHECK FAIL". 43 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 S20 FE 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.

    • The security of your device has been improved.

    • 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.

    • The security of your device has been improved.

    Show 15 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.

    • The security of your device has been improved.

    • Security
    The device is protected with improved security.

    • Security
    The device is protected with improved security.

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

    • The security of your device has been improved.

    • Security
    The device is protected with improved security.

    • The security of your device has been improved.

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

    • Security
    The device is protected with improved security.

    • The security of your device has been improved.

    • Stability and reliability
    Device behavior has been improved.

    • Security
    The device is protected with improved security.

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

    • The security of your device has been improved.

    Model firmware by region