SM-M166S 1 country Android 15

Samsung Galaxy M16 5G M166SKSS3AYH1 Firmware

Samsung Galaxy M16 5G M166SKSS3AYH1 is an Android 15 firmware for South Korea (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 M166SKSU2AYF2: bootloader binary raised from 2 to 3, so after installing it there is no way back to older builds. A newer build for SM-M166S is available: M166SKSU8DZJ5.

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8.9/10 (31)278 times
Android 15
OS Version
2025-07-31
Build Date
1
Countries
1
CSC codes
3
Bootloader binary

Bootloader binary 3. Flashing firmware with a lower binary is usually blocked by Samsung anti-rollback.

Newer builds of Samsung Galaxy M16 5G use bootloader binary 8 (latest: M166SKSU8DZJ5). If your device already runs binary 8, 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#.
    MODEM/CP Version: M166SKSS3AYH1
    ModelRegionCSC VersionRelease dateSizeFile nameDownload
    SM-M166S
    SKC South Korea
    		M166SSKC3AYH1 2025-08-13 6.542 GiB
    SM-M166S_1_20250731150541_zyjn5rdtrv_fac.zip

    No matching downloads

    How to flash M166SKSS3AYH1

    • M166SKSS3AYH1 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.

    Frequently Asked Questions

    M166SKSS3AYH1 is Android 15 firmware for Samsung Galaxy M16 5G, released for South Korea (SKC). Samsung built it on 2025-07-31.

    No. A newer build for SM-M166S is available: M166SKSU8DZJ5. Install it instead of M166SKSS3AYH1 unless you need this exact version. The previous build was M166SKSU2AYF2.

    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 6.542 GiB; keep about twice that free on the computer to unzip it. The Samsung Galaxy M16 5G must be on bootloader binary 3 or lower.

    This build uses bootloader binary 3. It can be flashed on a Samsung Galaxy M16 5G running binary 3 or lower; if the device already has a higher binary, Odin stops with "SW REV CHECK FAIL". 1 other build of this model uses the same binary, so you can switch between them in both directions.

    Other builds and changelog for Samsung Galaxy M16 5G

    No changelog details available.
    Model firmware by region