Galaxy Z Fold7 SM-F966W updates & firmware

This page tracks every software update Samsung's update servers list for the Samsung Galaxy Z Fold7 (SM-F966W). The latest stable build is F966WVLUDCZJB (Android 17, feature update), first released on Nov 9, 2026. Samsung has published 18 stable builds for this model since Jul 9, 2025: 12 security and 6 feature updates, from Android 16 to Android 17. The current bootloader (binary) version is 13. A device on bit 13 only accepts firmware with bit 13 or higher – see downgrading and the bootloader bit.

Latest build

F966WVLUDCZJB

Released

Nov 9, 2026

Android

Android 17

Bootloader bit

13

Regions

11

Stable builds

18

Update policy

Samsung promised 7 major Android upgrades and 7 years of security updates for the Galaxy Z Fold7, counted from its launch in July 2025 with Android 16. That makes Android 23 the last major version and security updates continue until about July 2032. It is currently on Android 17 (One UI 9), so 6 major upgrades are still to come.

OS upgrades promised

7

Security updates

7 years

Last major version

Android 23

Security support until

July 2032

Current version

Android 17 (One UI 9)

Status

Supported

Source: reported by sammobile.com. 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.

Firmware history (18 builds)

Every stable build (PDA version) Samsung has published for the SM-F966W, 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).

How to download SM-F966W 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-F966W -r XAC

Replace XAC 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-F966W / XAC 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).