Samsung Watch8 44mm L3350ZCS3AZF4
SM-L3350 1 country Wear OS 6.0

Samsung Watch8 44mm L3350ZCS3AZF4 Firmware

Samsung Watch8 44mm L3350ZCS3AZF4 is an Wear OS 6.0 firmware for China (CHC). 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 L3350ZCS3AZE1: security patch 2026-07-05 instead of 2026-05-05. This is the newest build for SM-L3350.

9.4/10 (83)478 times
Wear OS 6.0
OS Version
2026-07-08
Build Date
2026-07-05
Security patch
1
Countries
1
CSC codes
3
Bootloader binary

Bootloader binary 3. 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: L3350ZCS3AZF4
    ModelRegionCSC VersionRelease dateSizeFile nameDownload
    SM-L3350
    CHC China
    		L3350CHC3AZF4 2026-07-09 3.417 GiB
    SM-L3350_1_20260708162141_02mnjg02q7_fac.zip

    No matching downloads

    How to flash L3350ZCS3AZF4

    • L3350ZCS3AZF4 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.

    What's new in L3350ZCS3AZF4

    • 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: July 2026

    SMR Jul-2026 fixes 53 vulnerabilities, 6 of them critical. Android Security Bulletin: 39, Samsung-specific issues (SVE): 14.

    Most severe Samsung fixes:

    • critical Out-of-bounds write in libsavsac.so prior to SMR Jul-2026 Release 1 allows remote attackers to execute arbitrary code. (CVE-2026-21042)
    • high Improper authorization in KnoxGuardManager prior to SMR Jul-2026 Release 1 allows local attackers to bypass the persistence configuration of the application. (CVE-2026-21044)
    • high Out-of-bounds write in parsing TIFF format in libimagecodec.media.quram.so prior to SMR Jul-2026 Release 1 allows remote attackers to write out-of-bounds memory. (CVE-2026-21045)

    All fixes and Galaxy models with this patch

    Device specifications

    • Launched withWear OS
    • Display diagonal3.81 cm (1.5")
    • Display technologyAMOLED
    • Display resolution480 x 480 pixels
    • RAM2000 MB
    • Flash memory32 GB
    • Battery capacity435 mAh
    • Weight34 g
    • Band colourGraphite

    Specifications of SM-L335F, a regional variant of the same device. Chipset and SIM lines are left out: they can differ by region.

    Frequently Asked Questions

    L3350ZCS3AZF4 is Wear OS 6.0 firmware for Samsung Watch8 44mm, released for China (CHC). It includes the 2026-07-05 security patch. Samsung built it on 2026-07-08.

    SMR Jul-2026 fixes 53 vulnerabilities, 6 of them critical. Android Security Bulletin: 39, Samsung-specific issues (SVE): 14.

    Yes. L3350ZCS3AZF4 is the newest build for SM-L3350 on SamFirm. The previous build was L3350ZCS3AZE1.

    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 3.417 GiB; keep about twice that free on the computer to unzip it. The Samsung Watch8 44mm must be on bootloader binary 3 or lower.

    This build uses bootloader binary 3. It can be flashed on a Samsung Watch8 44mm 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 Watch8 44mm

    • Security
    The device is protected with improved security.

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

    • 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.
    Model firmware by region