Galaxy Z Fold6 SM-F956U1 updates & firmware

This page tracks every software update Samsung's update servers list for the Samsung Galaxy Z Fold6 (SM-F956U1). The latest stable build is F956U1UEU4EZJ8 (Android 17, feature update), first released on Nov 11, 2026. Samsung has published 32 stable builds for this model since Jul 10, 2024: 23 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 F956U1UEU4EZJ8 (Android 17 (One UI 9)) is live in all 14 regions, first released on Nov 11, 2026 in TMB (USA (T-Mobile)).

Latest build
F956U1UEU4EZJ8
Released
Nov 11, 2026
Android
Android 17
Bootloader bit
4
Regions
14
Stable builds
32

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
ACGUSA (C Spire)F956U1UEU4EZJ8Android 17Nov 11, 202637
AIOUSA (Cricket)F956U1UEU4EZJ8Android 17Nov 11, 202637
ATTUSA (AT&T)F956U1UEU4EZJ8Android 17Nov 11, 202637
CCTUSA (Comcast)F956U1UEU4EZJ8Android 17Nov 11, 202637
DSAUSAF956U1UES4EZJ1Android 17Nov 12, 202636
DSHUSAF956U1UES4EZJ1Android 17Nov 12, 202636
LRAUSA (Bluegrass)F956U1UEU4EZJ8Android 17Nov 11, 202637
TFNUSA (TracFone)F956U1UEU4EZJ8Android 17Nov 11, 202637
TMBUSA (T-Mobile)F956U1UES4EZJ1Android 17Nov 12, 202637
TMKUSA (MetroPCS)F956U1UES4EZJ1Android 17Nov 12, 202637
USCUSA (US Cellular)F956U1UES4EZJ1Android 17Nov 12, 202637
VZWUSA (Verizon)F956U1UEU4EZJ8Android 17Nov 11, 202637
XAAUSA (unlocked)F956U1UES4EZJ1Android 17Nov 12, 202637
XARUSA (Cellular South)F956U1UEU4EZJ8Android 17Nov 11, 202637

Firmware history (32 builds)

Every stable build (PDA version) Samsung has published for the SM-F956U1, 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
F956U1UEU4EZJ8Nov 11, 2026Android 17Feature414on server
F956U1UES4EZJ1Oct 28, 2026Android 17Security414on server
F956U1UEU4EZIHOct 11, 2026Android 17Feature414on server
F956U1UES4DZH5Aug 31, 2026Android 16Security414on server
F956U1UES4DZG3Jul 19, 2026Android 16Security414on server
F956U1UES4DZF2Jun 21, 2026Android 16Security414on server
F956U1UES4DZE1May 27, 2026Android 16Security414on server
F956U1UEU3DZDPMay 17, 2026Android 16Feature314on server
F956U1UES3CZC5Apr 12, 2026Android 16Security314on server
F956U1UES3CZC1Mar 22, 2026Android 16Security314on server
F956U1UES3CZB6Feb 25, 2026Android 16Security314on server
F956U1UES2CYL5Jan 18, 2026Android 16Security214on server
F956U1UES2CYK6Dec 14, 2025Android 16Security214on server
F956U1UES2CYK2Nov 19, 2025Android 16Security214on server
F956U1UES2CYJ1Oct 26, 2025Android 16Security214on server
F956U1UEU2CYI7Sep 24, 2025Android 16Feature214on server
F956U1UES2BYGBAug 13, 2025Android 15Security214on server
F956U1UES2BYFCJul 17, 2025Android 15Security214on server
F956U1UES2BYF3Jun 22, 2025Android 15Security214on server
F956U1UES2BYE3May 18, 2025Android 15Security214on server
F956U1UEU2BYD9Apr 22, 2025Android 15Feature214on server
F956U1UEU2BYCKApr 10, 2025Android 15Feature212on server
F956U1UES2AYB2Mar 9, 2025Android 14Security214on server
F956U1UES2AYA7Feb 12, 2025Android 14Security214on server
F956U1UES2AYA3Jan 22, 2025Android 14Security214on server
F956U1UES2AXLFJan 8, 2025Android 14Security214on server
F956U1UES2AXKFDec 15, 2024Android 14Security214on server
F956U1UEU2AXKBNov 26, 2024Android 14Feature214on server
F956U1UES1AXIBOct 9, 2024Android 14Security114on server
F956U1UES1AXHBSep 8, 2024Android 14Security114on server
F956U1UEU1AXH7Aug 28, 2024Android 14Feature114on server
F956U1UEU1AXFDJul 10, 2024Android 14Feature114on server

Beta and test builds

Samsung's servers also list 5 beta build(s) for this model. They are not offered to regular users and are often removed after the next stable release.

BuildListedFile
F956U1UEU4ZZI8Sep 15, 2026pulled
F956U1UEU4ZZHPSep 2, 2026pulled
F956U1UEU3ZZDDApr 20, 2026pulled
F956U1UEU3ZZD3Apr 13, 2026pulled
F956U1UEU3ZZCDMar 29, 2026pulled

How to download SM-F956U1 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-F956U1 -r XAA

Replace XAA 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-F956U1 / XAA 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).