Samsung Galaxy J4 J400MUBU2ARI2
SM-J400M 3 countries Android 8.0.0 (Oreo)

Samsung Galaxy J4 J400MUBU2ARI2 Firmware

Samsung Galaxy J4 J400MUBU2ARI2 is an Android 8.0.0 (Oreo) firmware for Chile (CHT), Guatemala (TGU), Puerto Rico (PCT). 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 J400MUBS2ARI1, Android and the bootloader binary are unchanged, so you can switch between the two in both directions. A newer build for SM-J400M is available: J400MUBUECWC1.

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Android 8.0.0 (Oreo)
OS Version
2018-09-17
Build Date
2018-09-01
Security patch
3
Countries
3
CSC codes
2
Bootloader binary

Bootloader binary 2. Flashing firmware with a lower binary is usually blocked by Samsung anti-rollback.

Newer builds of Samsung Galaxy J4 use bootloader binary E (14) (latest: J400MUBUECWC1). If your device already runs binary E (14), 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.
    ModelRegionCSC VersionMODEM/CP VersionRelease dateSizeFile nameDownload
    SM-J400M
    CHT Chile
    		J400MOWT2ARH1J400MUBU2ARI1 2018-10-23 2.341 GiB
    SM-J400M_1_20200602062621_yj682unx6a_fac.zip
    SM-J400M
    PCT Puerto Rico
    		J400MOWA2ARI1J400MUBU2ARI2 2018-10-25 — —
    SM-J400M
    TGU Guatemala
    		J400MOWT2ARI1J400MUBU2ARI2 2018-10-05 — —

    No matching downloads

    Device specifications

    • Display diagonal14 cm (5.5")
    • Display resolution720 x 1280 pixels
    • Display typeSAMOLED
    • RAM2 GB
    • Rear camera resolution13 MP
    • Rear camera typeSingle camera
    • Battery capacity3000 mAh
    • Weight175 g

    Specifications of SM-J400F, a regional variant of the same device. Chipset and SIM lines are left out: they can differ by region.

    What's new in J400MUBU2ARI2

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

    How to flash J400MUBU2ARI2

    • J400MUBU2ARI2 has bootloader binary 2. Your device must run binary 2 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

    J400MUBU2ARI2 is Android 8.0.0 (Oreo) firmware for Samsung Galaxy J4, released for Chile (CHT), Guatemala (TGU), Puerto Rico (PCT). It includes the 2018-09-01 security patch. Samsung built it on 2018-09-17.

    No. A newer build for SM-J400M is available: J400MUBUECWC1. Install it instead of J400MUBU2ARI2 unless you need this exact version. The previous build was J400MUBS2ARI1.

    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 2.341 GiB; keep about twice that free on the computer to unzip it. The Samsung Galaxy J4 must be on bootloader binary 2 or lower.

    This build uses bootloader binary 2. It can be flashed on a Samsung Galaxy J4 running binary 2 or lower; if the device already has a higher binary, Odin stops with "SW REV CHECK FAIL". 10 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 J4

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

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

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

    · Security patch update
    · Security patch update
    Show 15 older builds
    · Security patch update
    · Security patch update
    · Security patch update

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

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

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

    • The security of your device has been improved.

    • The security of your device has been improved.

    • Added new feature. - Google RCS(Rich Communication Service)
    • Overall stability of functions improved.
    • The security of your device has been improved.

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

    • LGPD (General Personal Data Protection Law) has been applied.
    • The security of your device has been improved.

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

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

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

    One UI 2 upgrade with Android 10

    One UI 2 brings you Android 10, with exciting new features from Samsung and Google based on feedback from users like you.
    We recommend that you back up your important data to keep it safe during the upgrade.
    Some apps, including Calculator, Samsung Internet, Samsung Health and Samsung Notes, need to be updated individually after you update your OS.

    Here's what's new.

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