Samsung Galaxy Watch6 R930XXU2CZC2
SM-R930 1 country Wear OS 6.0

Samsung Galaxy Watch6 R930XXU2CZC2 Firmware

Samsung Galaxy Watch6 R930XXU2CZC2 is an Wear OS 6.0 firmware for Japan (XJP). 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 R930ZCU2CZC1, Android and the bootloader binary are unchanged, so you can switch between the two in both directions. A newer build for SM-R930 is available: R930XXS2CZF5.

Download firmware
8.8/10 (31)342 times
Wear OS 6.0
OS Version
2026-03-24
Build Date
2026-02-05
Security patch
1
Countries
1
CSC codes
2
Bootloader binary

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

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: R930XXU2CZC2
    ModelRegionCSC VersionRelease dateSizeFile nameDownload
    SM-R930
    XJP Japan
    		R930SJP2CZC2 2026-03-25 3.539 GiB
    SM-R930_3_20260324144431_ea00cft00s_fac.zip

    No matching downloads

    How to flash R930XXU2CZC2

    • R930XXU2CZC2 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.

    What's new in R930XXU2CZC2

    • Stability and reliability
    Device behavior 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 patch: February 2026

    SMR Feb-2026 fixes 32 vulnerabilities, 0 of them critical. Android Security Bulletin: 25, Samsung-specific issues (SVE): 7.

    Most severe Samsung fixes:

    • high Improper access control in Emergency Sharing prior to SMR Feb-2026 Release 1 allows local attackers to interrupt its functioning. (CVE-2026-20977)
    • high Improper export of android application components in Samsung Dialer prior to SMR Feb-2026 Release 1 allows local attackers to launch arbitrary activity with Samsung Dialer privilege. (CVE-2026-20983)
    • high Improper authorization in KnoxGuardManager prior to SMR Feb-2026 Release 1 allows local attackers to bypass the persistence configuration of the application. (CVE-2026-20978)

    All fixes and Galaxy models with this patch

    Device specifications

    • Launched withWear OS
    • Battery capacity300 mAh
    • Weight28.7 g
    • Waterproof up to50 m
    • Band colourBlack

    Specifications of SM-R930N, a regional variant of the same device. Chipset and SIM lines are left out: they can differ by region.

    Frequently Asked Questions

    R930XXU2CZC2 is Wear OS 6.0 firmware for Samsung Galaxy Watch6, released for Japan (XJP). It includes the 2026-02-05 security patch. Samsung built it on 2026-03-24.

    SMR Feb-2026 fixes 32 vulnerabilities, 0 of them critical. Android Security Bulletin: 25, Samsung-specific issues (SVE): 7.

    No. A newer build for SM-R930 is available: R930XXS2CZF5. Install it instead of R930XXU2CZC2 unless you need this exact version. The previous build was R930ZCU2CZC1.

    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 3.539 GiB; keep about twice that free on the computer to unzip it. The Samsung Galaxy Watch6 must be on bootloader binary 2 or lower.

    This build uses bootloader binary 2. It can be flashed on a Samsung Galaxy Watch6 running binary 2 or lower; if the device already has a higher binary, Odin stops with "SW REV CHECK FAIL". 14 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 Watch6

    • Security
    The device is protected with improved security.

    These changes may vary depending on the model, country, or network operator of the customer environment.

    No changelog details available.

    • Security
    The device is protected with improved security.

    These changes may vary depending on the model, country, or network operator of the customer environment.

    No changelog details available.

    • Stability and reliability
    Device behavior 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.

    Show 11 older builds

    • Stability and reliability
    Device behavior has been improved.

    These changes may vary depending on the model, country, or network operator of the customer environment.

    No changelog details available.

    • Stability and reliability
    Device behavior 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.

    No changelog details available.

    • Stability and reliability
    Device behavior has been improved.

    These changes may vary depending on the model, country, or network operator of the customer environment.

    No changelog details available.

    • Security
    The device is protected with improved security.

    These changes may vary depending on the model, country, or network operator of the customer environment.

    No changelog details available.
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