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    Samsung Galaxy Watch4 44mm LTE (SM-R875F) - KDI - R875FXXU1FVC8 firmware

    Samsung Galaxy Watch4 44mm LTE firmware R875FXXU1FVC8 is the Android 11 build for the Samsung Galaxy Watch4 44mm LTE (model SM-R875F), released by Samsung for Japan (AU KDDI) (KDI). It was built on 29 March 2022, carries the 2022-03-01 Android security patch, has changelist 23869861. The package combines system build R875FXXU1FVC8 (AP/PDA) with CSC build R875FOLB1FVC8 for the KDI region code. The download is 2.4 GB and has MD5 checksum fa92016aec3255c3d627e6437e1fa713, so you can verify the file after downloading. SamMobile added this file to the firmware archive on 20 September 2026.

    Country
    Model SM-R875F
    Product Code KDI
    Security Patch 2022-03-01
    OS Version Android 11
    PDA R875FXXU1FVC8
    CSC R875FOLB1FVC8
    Build Date 2022-03-29
    Changelist 23869861
    File size 2.4 GB (2,573,430,253 bytes)
    MD5 fa92016aec3255c3d627e6437e1fa713
    Join to Download Fast download

    R875FXXU1FVC8 for other regions and carriers

    The same R875FXXU1FVC8 build is also available for these SM-R875F regions:

    Other SM-R875F firmware for Japan (AU KDDI) (KDI)

    All SM-R875F firmware for KDI · All Samsung Galaxy Watch4 44mm LTE (SM-R875F) firmware

    How to flash R875FXXU1FVC8 on the Samsung Galaxy Watch4 44mm LTE (SM-R875F)

    We recommend updating through Samsung's own tools: over-the-air (Settings › Software update) or Samsung Smart Switch on a PC. Flash the full firmware with Odin only when you are sure about the risks. A wrong region or a failed flash can brick the device, and SamMobile is not responsible for any damage.

    1. Download the firmware package above and extract the ZIP. It contains the AP (PDA), BL, CP and CSC files, plus a HOME_CSC file.
    2. Download and extract Odin on a Windows PC, and install the Samsung USB drivers if the PC does not detect the phone.
    3. Switch the device off and boot it into Download mode (usually Volume Up + Volume Down while connecting the USB cable, or Volume Down + Bixby + Power on older models).
    4. Open Odin. The ID:COM box turns blue when the device is connected.
    5. Load the files in their slots: BL, AP, CP and CSC. Use HOME_CSC to keep your apps and data, CSC to wipe the device.
    6. Leave Re-Partition unticked and click Start. The device reboots when Odin shows PASS. The first boot after a flash can take a few minutes.

    Step-by-step PDFs: 5-file firmware and 1-file firmware.

    What the build numbers mean

    PDA / AP (R875FXXU1FVC8) is the Android system build; its last three characters encode the year, month and revision. CSC (R875FOLB1FVC8) is the region and carrier configuration, and CP is the modem firmware. The product code KDI identifies the region or carrier this package was made for (Japan (AU KDDI)); our list of Samsung CSC codes maps every code to its country and carrier. Flashing a package for a different product code changes carrier features and can be refused by the bootloader, so pick the one that matches the CSC shown under Settings › About phone › Software information.