Galaxy Z Fold8 SM-F971U1 updates & firmware

This page tracks every software update Samsung's update servers list for the Samsung Galaxy Z Fold8 (SM-F971U1). The latest stable build is F971U1UEU3AZJ8 (Android 17, feature update), first released on Oct 28, 2026. Samsung has published 8 stable builds for this model since Jul 22, 2026: 2 security and 6 feature updates, from Android 17 to Android 17. The current bootloader (binary) version is 3. A device on bit 3 only accepts firmware with bit 3 or higher – see downgrading and the bootloader bit.

Rollout: build F971U1UEU3AZJ8 (Android 17 (One UI 9)) is live in all 13 regions, first released on Oct 28, 2026 in TMK (USA (MetroPCS)).

Latest build
F971U1UEU3AZJ8
Released
Oct 28, 2026
Android
Android 17
Bootloader bit
3
Regions
13
Stable builds
8

Update policy

Samsung promised 7 major Android upgrades and 7 years of security updates for the Galaxy Z Fold8, counted from its launch in July 2026 with Android 17. That makes Android 24 the last major version and security updates continue until about July 2033. It is currently on Android 17 (One UI 9), so 7 major upgrades are still to come.

OS upgrades promised
7
Security updates
7 years
Last major version
Android 24
Security support until
July 2033
Current version
Android 17 (One UI 9)
Status
Supported

Source: reported by androidcentral.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.

CSCRegionLatest buildAndroidReleasedBuilds
ACGUSA (C Spire)F971U1UEU3AZJ8Android 17Oct 28, 20268
AIOUSA (Cricket)F971U1UEU3AZJ8Android 17Oct 28, 20268
ATTUSA (AT&T)F971U1UEU3AZJ8Android 17Oct 28, 20268
CCTUSA (Comcast)F971U1UEU3AZJ8Android 17Oct 28, 20268
DSAUSAF971U1UEU3AZJ8Android 17Oct 28, 20268
DSHUSAF971U1UEU3AZJ8Android 17Oct 28, 20268
LRAUSA (Bluegrass)F971U1UEU3AZJ8Android 17Oct 28, 20268
TFNUSA (TracFone)F971U1UEU3AZJ8Android 17Oct 28, 20268
TMBUSA (T-Mobile)F971U1UEU3AZJ8Android 17Oct 28, 20268
TMKUSA (MetroPCS)F971U1UEU3AZJ8Android 17Oct 28, 20268
VZWUSA (Verizon)F971U1UEU3AZJ8Android 17Oct 28, 20268
XAAUSA (unlocked)F971U1UEU3AZJ8Android 17Oct 28, 20268
XARUSA (Cellular South)F971U1UEU3AZJ8Android 17Oct 28, 20268

Firmware history (8 builds)

Every stable build (PDA version) Samsung has published for the SM-F971U1, 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
F971U1UEU3AZJ8Oct 28, 2026Android 17Feature313on server
F971U1UES3AZILOct 5, 2026Android 17Security313on server
F971U1UEU3AZI8Sep 21, 2026Android 17Feature313on server
F971U1UEU3AZI5Sep 14, 2026Android 17Feature313on server
F971U1UES2AZH7Aug 12, 2026Android 17Security213on server
F971U1UEU1AZGIJul 30, 2026Android 17Feature113on server
F971U1UEU1AZFWJul 22, 2026Android 17Feature113on server
F971U1UEU3AZJC–Android 17Feature313on server

How to download SM-F971U1 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-F971U1 -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-F971U1 / 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).