Galaxy Z Fold6 SM-F956N updates & firmware

This page tracks every software update Samsung's update servers list for the Samsung Galaxy Z Fold6 (SM-F956N). The latest stable build is F956NKSU4EZJF (Android 17, feature update), first released on Nov 8, 2026. Samsung has published 33 stable builds for this model since Jul 18, 2024: 24 security and 9 feature updates, from Android 14 to Android 17. The current bootloader (binary) version is 4. A device on bit 4 only accepts firmware with bit 4 or higher – see downgrading and the bootloader bit.

Rollout: build F956NKSU4EZJF (Android 17 (One UI 9)) is live in all 4 regions, first released on Nov 8, 2026 in KOO (South Korea).

Latest build
F956NKSU4EZJF
Released
Nov 8, 2026
Android
Android 17
Bootloader bit
4
Regions
4
Stable builds
33

Update policy

Samsung promised 7 major Android upgrades and 7 years of security updates for the Galaxy Z Fold6, counted from its launch in July 2024 with Android 14. That makes Android 21 the last major version and security updates continue until about July 2031. It is currently on Android 17 (One UI 9), so 4 major upgrades are still to come.

OS upgrades promised
7
Security updates
7 years
Last major version
Android 21
Security support until
July 2031
Current version
Android 17 (One UI 9)
Status
Supported

Source: Samsung. Samsung counts from the global launch and does not publish exact end dates; the dates above are launch month plus the promised years.

Compare all models: Samsung update policy by model.

Latest firmware by region (CSC)

Samsung builds firmware per region code (CSC). Pick the code that matches your device – it is shown under Settings › About phone › Software information › Service provider software version. Follow a code for its complete history.

CSCRegionLatest buildAndroidReleasedBuilds
KOOSouth KoreaF956NKSU4EZJFAndroid 17Nov 8, 202643
KTCSouth Korea (KT)F956NKSU4EZJFAndroid 17Nov 8, 202643
LUCSouth Korea (LG U+)F956NKSU4EZJFAndroid 17Nov 8, 202642
SKCSouth Korea (SKT)F956NKSU4EZJFAndroid 17Nov 8, 202642

Firmware history (33 builds)

Every stable build (PDA version) Samsung has published for the SM-F956N, newest first. “Released” is the earliest date the build appeared on Samsung's servers in any region (how dates work). “pulled” means Samsung no longer serves the file for that build, usually because newer builds replaced it (details).

Build (PDA)ReleasedAndroidTypeBitRegionsFile
F956NKSU4EZJFNov 8, 2026Android 17Feature44on server
F956NKSS4EZJ1Oct 26, 2026Android 17Security44on server
F956NKSU4EZIHOct 5, 2026Android 17Feature44on server
F956NKSS4DZH5Aug 25, 2026Android 16Security44on server
F956NKSS4DZG1Jul 14, 2026Android 16Security44on server
F956NKSS4DZF3Jun 18, 2026Android 16Security44on server
F956NKSS4DZE1May 27, 2026Android 16Security44on server
F956NKSU3DZDPMay 10, 2026Android 16Feature34on server
F956NKSS3CZCSApr 7, 2026Android 16Security34on server
F956NKSS3CZC1Mar 19, 2026Android 16Security34on server
F956NKSS3CZB2Feb 22, 2026Android 16Security34on server
F956NKSS2CZA1Jan 15, 2026Android 16Security24on server
F956NKSS2CYKEDec 10, 2025Android 16Security24on server
F956NKSS2CYK3Nov 16, 2025Android 16Security24on server
F956NKSS2CYJ3Oct 29, 2025Android 16Security24on server
F956NKSS2CYI8Sep 30, 2025Android 16Security22on server
F956NKSU2CYI7Sep 21, 2025Android 16Feature24on server
F956NKSS2BYGBAug 11, 2025Android 15Security24on server
F956NKSS2BYFCJul 9, 2025Android 15Security24on server
F956NKSS2BYERJun 11, 2025Android 15Security24on server
F956NKSS2BYDDMay 12, 2025Android 15Security24on server
F956NKSU2BYD9Apr 17, 2025Android 15Feature24on server
F956NKSU2BYCKApr 6, 2025Android 15Feature24on server
F956NKSS2AYBDMar 5, 2025Android 14Security24on server
F956NKSS2AYAAFeb 10, 2025Android 14Security24on server
F956NKSS2AYA3Jan 20, 2025Android 14Security24on server
F956NKSS2AXLFJan 9, 2025Android 14Security24on server
F956NKSS2AXKCDec 5, 2024Android 14Security24on server
F956NKSU2AXK8Nov 17, 2024Android 14Feature24on server
F956NKSS1AXIAOct 15, 2024Android 14Security14on server
F956NKSS1AXHCSep 8, 2024Android 14Security14on server
F956NKSU1AXH7Aug 21, 2024Android 14Feature14on server
F956NKSU1AXFDJul 18, 2024Android 14Feature14on server

Beta and test builds

Samsung's servers also list 10 beta build(s) for this model. They are not offered to regular users and are often removed after the next stable release.

BuildListedFile
F956NKSU4ZZI8Sep 14, 2026pulled
F956NKSU4ZZHPSep 2, 2026pulled
F956NKSU3ZZDDApr 19, 2026pulled
F956NKSU3ZZD3Apr 12, 2026pulled
F956NKSU3ZZCDMar 30, 2026pulled
F956NKSU2ZYHBAug 29, 2025pulled
F956NKSU2ZYH4Aug 12, 2025pulled
F956NKSU2ZYCGMar 24, 2025pulled
F956NKSU2ZYC7Mar 16, 2025pulled
F956NKSU2ZYBJMar 7, 2025pulled

How to download SM-F956N firmware

We do not host firmware. Download it directly from Samsung's servers with a free open-source tool, for example samloader:

samloader download -m SM-F956N -r KOO

Replace KOO with your region code. Step-by-step instructions, including a graphical alternative: How to download Samsung firmware.

Changelog and security patch level

Samsung publishes the release notes for each update, including the security patch level, on its own site. They are listed per region – for example SM-F956N / KOO release notes on doc.samsungmobile.com. Each region page here links to the notes for that code. We don't show the patch level ourselves because Samsung's update servers don't report it (why).