Samsung Galaxy A33 5G A336NKSSBGYI4
SM-A336N 1 country Android 16

Samsung Galaxy A33 5G A336NKSSBGYI4 Firmware

Samsung Galaxy A33 5G A336NKSSBGYI4 is an Android 16 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 A336NKSUBGYI3: security patch 2025-10-01 instead of 2025-09-01. A newer build for SM-A336N is available: A336NKSUGGZI2.

OS updates guaranteed until: Android 16Security updates until: Mar 27, 2027
9.4/10 (203)5,461 times
Android 16
OS Version
2025-10-15
Build Date
2025-10-01
Security patch
1
Countries
4
CSC codes
B (11)
Bootloader binary

Bootloader binary B (11). Flashing firmware with a lower binary is usually blocked by Samsung anti-rollback.

Newer builds of Samsung Galaxy A33 5G use bootloader binary G (16) (latest: A336NKSUGGZI2). If your device already runs binary G (16), 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: A336NKOUBGYI2
    ModelRegionCSC VersionRelease dateSizeFile nameDownload
    SM-A336N
    KOO, KTC, LUC, SKC South Korea
    		A336NOKRBGYI4 2025-10-15 7.11 GiB
    SM-A336N_5_20250929125641_w79g32f0cj_fac.zip

    No matching downloads

    How to flash A336NKSSBGYI4

    • A336NKSSBGYI4 has bootloader binary B (11). Your device must run binary B (11) 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.

    Security patch: October 2025

    SMR Oct-2025 fixes 25 vulnerabilities, 0 of them critical. Android Security Bulletin: 13, Samsung-specific issues (SVE): 12.

    Most severe Samsung fixes:

    • high Out-of-bounds write in fingerprint trustlet (CVE-2025-21044)
    • high Improper input validation in Contacts (CVE-2025-21050)
    • high Relative path traversal in Knox Enterprise (CVE-2025-21048)

    All fixes and Galaxy models with this patch

    Rollout of A336NKSSBGYI4 by region

    Samsung released this build in all regions (4) on the same day, October 15, 2025.

    Device specifications

    • Launched withAndroid 12
    • Display diagonal16.3 cm (6.4")
    • Display resolution1080 x 2400 pixels
    • RAM6 GB
    • Rear camera resolution48 MP
    • Rear camera typeQuad camera
    • Battery capacity5000 mAh
    • Weight186 g

    Specifications of SM-A336B, a regional variant of the same device. Chipset and SIM lines are left out: they can differ by region.

    Frequently Asked Questions

    A336NKSSBGYI4 is Android 16 firmware for Samsung Galaxy A33 5G, released for South Korea (KOO, KTC, LUC, SKC). It includes the 2025-10-01 security patch. Samsung built it on 2025-10-15.

    SMR Oct-2025 fixes 25 vulnerabilities, 0 of them critical. Android Security Bulletin: 13, Samsung-specific issues (SVE): 12.

    No. A newer build for SM-A336N is available: A336NKSUGGZI2. Install it instead of A336NKSSBGYI4 unless you need this exact version. The previous build was A336NKSUBGYI3.

    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 7.11 GiB; keep about twice that free on the computer to unzip it. The Samsung Galaxy A33 5G must be on bootloader binary B (11) or lower.

    This build uses bootloader binary B (11). It can be flashed on a Samsung Galaxy A33 5G running binary B (11) 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 Galaxy A33 5G

    No changelog details available.
    Model firmware by region