Samsung Galaxy A30s A307GUBS4CUJ1
SM-A307G 11 countries Android 11

Samsung Galaxy A30s A307GUBS4CUJ1 Firmware

Samsung Galaxy A30s A307GUBS4CUJ1 is an Android 11 firmware for 11 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 A307GUBU4CUH6: security patch 2021-11-01 instead of 2021-09-01. A newer build for SM-A307G is available: A307GUBS6CWH3.

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Android 11
OS Version
2021-11-17
First release
other regions until 2021-11-30
2021-11-01
Security patch
11
Countries
12
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 A30s use bootloader binary 6 (latest: A307GUBS6CWH3). If your device already runs binary 6, 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: A307GDXS4CUK1
    ModelRegionCSC VersionRelease dateSizeFile nameDownload
    SM-A307G
    CDR Dominican Republic
    CHL, CRC Chile
    COM Colombia
    CPA Panama
    +7 more countries
    CTI Argentina
    CTP Paraguay
    CTU Uruguay
    ECO Ecuador
    PET Peru
    PGU Guatemala
    TCE Mexico
    		A307GOWA4CUH6 2021-11-17 4.196 GiB
    SM-A307G_2_20211109065430_5d32qh8n3i_fac.zip

    No matching downloads

    Device specifications

    • Launched withAndroid 9.0
    • Display diagonal16.3 cm (6.4")
    • Display resolution1560 x 720 pixels
    • Display typeSAMOLED
    • Processor frequency1.8 GHz
    • Processor familySamsung Exynos
    • Processor model7904
    • RAM4 GB
    • Rear camera resolution25 MP
    • Rear camera typeTriple camera
    • SIM cardsDual SIM
    • Battery capacity4000 mAh
    • Weight169 g

    What's new in A307GUBS4CUJ1

    • The security of your device has been improved.

    How to flash A307GUBS4CUJ1

    • A307GUBS4CUJ1 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

    A307GUBS4CUJ1 is Android 11 firmware for Samsung Galaxy A30s, released for 11 countries, 12 CSC codes. It includes the 2021-11-01 security patch. Samsung built it on 2021-11-17.

    No. A newer build for SM-A307G is available: A307GUBS6CWH3. Install it instead of A307GUBS4CUJ1 unless you need this exact version. The previous build was A307GUBU4CUH6.

    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 4.196 GiB; keep about twice that free on the computer to unzip it. The Samsung Galaxy A30s must be on bootloader binary 4 or lower.

    This build uses bootloader binary 4. It can be flashed on a Samsung Galaxy A30s running binary 4 or lower; if the device already has a higher binary, Odin stops with "SW REV CHECK FAIL". 31 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 A30s

    No changelog details available.

    • Overall stability of your device has been improved.
    • The security of your device has been improved.

    • Overall stability of your device has been improved.
    • The security of your device has been improved.

    • Overall stability of your device has been improved.
    • The security of your device has been improved.

    • The security of your device has been improved.

    Show 15 older builds

    · Device stability improvements, bug fixes.
    · New and / or enhanced features.
    · Further improvements to performance.

    No changelog details available.

    • Overall stability 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.

    • The security of your device has been improved.

    · Security patch update
    · Security patch update
    No changelog details available.

    • The security of your device has been improved.

    • Overall stability 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.

    Model firmware by region