SM-F956N 1 country Android 16

Samsung Galaxy Z Fold6 F956NKSS3CZB2 Firmware

Name: Samsung Galaxy Z Fold6 (SM-F956N)
Brand: Samsung
Availability: InStock

Samsung Galaxy Z Fold6 F956NKSS3CZB2 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 F956NKSS2CZA1 https://samfirm.shop/build/F956NKSS2CZA1: bootloader binary raised from 2 to 3, so after installing it there is no way back to older builds. A newer build for SM-F956N is available: F956NKSU4EZIH https://samfirm.shop/build/F956NKSU4EZIH.

OS updates guaranteed until: Android 21Security updates until: Jul 24, 2031

8.7/10 (147)3,108 times

Android 16

OS Version

2026-02-23

Build Date

n/a

Security patch

Countries

CSC codes

Bootloader binary

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

Newer builds of Samsung Galaxy Z Fold6 use bootloader binary 4 (latest: F956NKSU4EZIH). If your device already runs binary 4, this build cannot be flashed.

All regional downloads

Pick your region (CSC) to download the matching firmware package.

Will it work on my device?

Paste your current build number from Settings > About phone (About tablet) > Software information, or the output of *#1234#.

MODEM/CP Version: F956NKSS3CZB1

Model	Region	CSC Version	Release date	Size	File name	Download
SM-F956N	KOO, KTC, LUC, SKC South Korea	F956NOKR3CZB2	2026-02-23	12.533 GiB	SM-F956N_3_20260213234410_bj2awir4ek_fac.zip

Device specifications

Launched withAndroid 14
Display diagonal19.3 cm (7.6")
Display resolution2160 x 1856 pixels
RAM12 GB
Rear camera resolution50 MP
Rear camera typeTriple camera
Battery capacity4400 mAh
Weight239 g

Specifications of SM-F956B, a regional variant of the same device. Chipset and SIM lines are left out: they can differ by region.

How to flash F956NKSS3CZB2

Install Samsung USB Drivers:Download Official Drivers
Download Odin Flash Tool:

F956NKSS3CZB2 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

F956NKSS3CZB2 is Android 16 firmware for Samsung Galaxy Z Fold6, released for South Korea (KOO, KTC, LUC, SKC). Samsung built it on 2026-02-23.

No. A newer build for SM-F956N is available: F956NKSU4EZIH. Install it instead of F956NKSS3CZB2 unless you need this exact version. The previous build was F956NKSS2CZA1.

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 12.533 GiB; keep about twice that free on the computer to unzip it. The Samsung Galaxy Z Fold6 must be on bootloader binary 3 or lower.

This build uses bootloader binary 3. It can be flashed on a Samsung Galaxy Z Fold6 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.