Samsung Galaxy A42 5G A426USQU3AUJ2
SM-A426U 2 countries Android 11

Samsung Galaxy A42 5G A426USQU3AUJ2 Firmware

Samsung Galaxy A42 5G A426USQU3AUJ2 is an Android 11 firmware for CHA, United States (CCT, 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 A426USQU3AUH3: security patch 2021-10-01 instead of 2021-08-01. A newer build for SM-A426U is available: A426USQU9EXF1.

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Android 11
OS Version
2021-11-18
First release
other regions until 2021-12-01
2021-10-01
Security patch
2
Countries
3
CSC codes
3
Bootloader binary

Bootloader binary 3. Flashing firmware with a lower binary is usually blocked by Samsung anti-rollback.

Newer builds of Samsung Galaxy A42 5G use bootloader binary 9 (latest: A426USQU9EXF1). If your device already runs binary 9, 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: A426USQU3AUJ2
    ModelRegionCSC VersionBuild DateRelease dateSizeFile nameDownload
    SM-A426U
    CCT United States
    		A426UOYN3AUJ2 2021-11-18 2021-11-18 4.988 GiB
    SM-A426U_1_20211117214700_7cg0texrj5_fac.zip
    SM-A426U
    CHA
    		A426UOYN3AUJ2 2021-11-18 2021-11-18 4.988 GiB
    SM-A426U_1_20211117213331_c3rk5cp6d4_fac.zip
    SM-A426U
    VZW United States
    		A426UOYN3AUJ2 2021-12-01 2021-12-01 5.158 GiB
    SM-A426U_1_20211019103706_hb0eg4n3og_fac.zip

    No matching downloads

    Device specifications

    • Launched withAndroid 10.0
    • Display diagonal16.8 cm (6.6")
    • Display resolution720 x 1600 pixels
    • Display typeSAMOLED
    • RAM4 GB
    • Rear camera resolution48 MP
    • Rear camera typeQuad camera
    • Battery capacity5000 mAh
    • Weight193 g

    Specifications of SM-A426B, a regional variant of the same device. Chipset and SIM lines are left out: they can differ by region.

    What's new in A426USQU3AUJ2

    · Security patch update

    How to flash A426USQU3AUJ2

    • A426USQU3AUJ2 has bootloader binary 3. Your device must run binary 3 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

    A426USQU3AUJ2 is Android 11 firmware for Samsung Galaxy A42 5G, released for CHA, United States (CCT, VZW). It includes the 2021-10-01 security patch. Samsung built it on 2021-11-18.

    No. A newer build for SM-A426U is available: A426USQU9EXF1. Install it instead of A426USQU3AUJ2 unless you need this exact version. The previous build was A426USQU3AUH3.

    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 A42 5G must be on bootloader binary 3 or lower.

    This build uses bootloader binary 3. It can be flashed on a Samsung Galaxy A42 5G running binary 3 or lower; if the device already has a higher binary, Odin stops with "SW REV CHECK FAIL". 3 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 A42 5G

    • The security of your device has been improved.

    • The security of your device has been improved.

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

    Software and Terms & Conditions Update

    IMPORTANT INFORMATION: This update includes revised Terms & Conditions for your device, including the Dispute Resolution Agreement with arbitration terms. For more information, review https://www.samsung.com/us/support/legal/mobile/.
    ​By clicking “Install now,” by scheduling your install, or by continuing to use your device after installation, you agree to these revised Terms & Conditions.

    • Security
    The device is protected with improved security.

    • The security of your device has been improved.

    Show 11 older builds
    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...

    No changelog details available.
    One UI 5 Upgrade (Android 13)

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    Visual design

    New app icons and illustrations
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    Smoother than ever before
    New animations and transition effects make sw...

    • The security of your device has been improved.

    · The security of your device has been improved.

    · Security patch update

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

    One UI 4 Upgrade (Android 12)

    One UI 4 brings you a wide array of new features and enhancements for your Galaxy devices. More intuitive, more fun, more secure, and easier than ever.

    Check out the changes below.

    Color palette

    Customize your phone with unique colors based on your wallpaper. Your colors will be applied to menus, buttons, backgrounds, and apps throughout your phone.

    Privacy

    One UI 4 offers strong privacy protection to make sure your personal information doesn’t fall into the...

    · Security patch update
    · Security patch update
    · Security patch update
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