SM-L715N 1 country Android 17

Samsung Watch Ultra2 L715NKOS1AZH4 Firmware

Samsung Watch Ultra2 L715NKOS1AZH4 is an Android 17 firmware for South Korea (KOO, KTC, LUC, SKC). 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 L715NKOU1AZFL, Android and the bootloader binary are unchanged, so you can switch between the two in both directions. A newer build for SM-L715N is available: L715NKOU1AZH8.

Download firmware
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Android 17
OS Version
2026-08-31
Build Date
1
Countries
4
CSC codes
1
Bootloader binary

Bootloader binary 1. 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: L715NKOS1AZH4
    ModelRegionCSC VersionSizeFile nameDownload
    SM-L715N
    KOO, KTC, LUC, SKC South Korea
    		L715NOKR1AZH4 3.619 GiB
    SM-L715N_1_20260831185841_z49ns0aoxe_fac.zip
    		Download

    No matching downloads

    How to flash L715NKOS1AZH4

    • L715NKOS1AZH4 has bootloader binary 1. Your device must run binary 1 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.

    Device specifications

    • Launched withWear OS
    • Display diagonal3.81 cm (1.5")
    • Display technologyAMOLED
    • Display resolution498 x 498 pixels
    • RAM2000 MB
    • Flash memory64 GB
    • Battery capacity800 mAh
    • Weight61.5 g
    • Band colourGrey

    Specifications of SM-L715F, a regional variant of the same device. Chipset and SIM lines are left out: they can differ by region.

    Frequently Asked Questions

    L715NKOS1AZH4 is Android 17 firmware for Samsung Watch Ultra2, released for South Korea (KOO, KTC, LUC, SKC). Samsung built it on 2026-08-31.

    No. A newer build for SM-L715N is available: L715NKOU1AZH8. Install it instead of L715NKOS1AZH4 unless you need this exact version. The previous build was L715NKOU1AZFL.

    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 3.619 GiB; keep about twice that free on the computer to unzip it. The Samsung Watch Ultra2 must be on bootloader binary 1 or lower.

    This build uses bootloader binary 1. It can be flashed on a Samsung Watch Ultra2 running binary 1 or lower; if the device already has a higher binary, Odin stops with "SW REV CHECK FAIL". 2 other builds of this model use the same binary, so you can switch between them in both directions.

    Other builds and changelog for Samsung Watch Ultra2

    No changelog details available.
    Model firmware by region