Samsung Galaxy Tab Active5 5G X306NKOS9CZA3
SM-X306N 1 country Android 16

Samsung Galaxy Tab Active5 5G X306NKOS9CZA3 Firmware

Samsung Galaxy Tab Active5 5G X306NKOS9CZA3 is an Android 16 firmware for South Korea (KOO). 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 X306NKOS8CYK2: bootloader binary raised from 8 to 9, so after installing it there is no way back to older builds. A newer build for SM-X306N is available: X306NKOSEDZI1.

OS updates guaranteed until: Android 22Security updates until: Jan 29, 2032
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9.4/10 (36)231 times
Android 16
OS Version
2026-01-16
Build Date
1
Countries
1
CSC codes
9
Bootloader binary

Bootloader binary 9. Flashing firmware with a lower binary is usually blocked by Samsung anti-rollback.

Newer builds of Samsung Galaxy Tab Active5 5G use bootloader binary E (14) (latest: X306NKOSEDZI1). If your device already runs binary E (14), 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: X306NKOS9CZA3
    ModelRegionCSC VersionRelease dateSizeFile nameDownload
    SM-X306N
    KOO South Korea
    		X306NKOO9CZA3 2026-01-27 7.101 GiB
    SM-X306N_3_20260116115611_9eullcropm_fac.zip

    No matching downloads

    How to flash X306NKOS9CZA3

    • X306NKOS9CZA3 has bootloader binary 9. Your device must run binary 9 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 withAndroid 14
    • Display diagonal20.3 cm (8")
    • Display resolution1920 x 1200 pixels
    • Rear camera resolution13 MP
    • Rear camera typeSingle camera
    • Front camera resolution5 MP
    • Wi-Fi standardWi-Fi 6 (802.11ax)
    • Weight433 g

    Specifications of SM-X306B, a regional variant of the same device. Chipset and SIM lines are left out: they can differ by region.

    Frequently Asked Questions

    X306NKOS9CZA3 is Android 16 firmware for Samsung Galaxy Tab Active5 5G, released for South Korea (KOO). Samsung built it on 2026-01-16.

    No. A newer build for SM-X306N is available: X306NKOSEDZI1. Install it instead of X306NKOS9CZA3 unless you need this exact version. The previous build was X306NKOS8CYK2.

    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 7.101 GiB; keep about twice that free on the computer to unzip it. The Samsung Galaxy Tab Active5 5G must be on bootloader binary 9 or lower.

    This build uses bootloader binary 9. It can be flashed on a Samsung Galaxy Tab Active5 5G running binary 9 or lower; if the device already has a higher binary, Odin stops with "SW REV CHECK FAIL". No other build of this model uses binary 9.

    Other builds and changelog for Samsung Galaxy Tab Active5 5G

    No changelog details available.
    Model firmware by region