Galaxy Z Fold8 SM-F971B updates & firmware
This page tracks every software update Samsung's update servers list for the Samsung Galaxy Z Fold8 (SM-F971B). The latest stable build is F971BXXU3AZJ8 (Android 17, feature update), first released on Oct 28, 2026. Samsung has published 9 stable builds for this model since Jul 23, 2026: 3 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 F971BXXU3AZJ8 (Android 17 (One UI 9)) is live in all 43 regions, first released on Oct 28, 2026 in ACR (Ghana). In India (INS) the latest official firmware (flash file) is F971BXXU3AZJ8 from Oct 29, 2026.
- Latest build
F971BXXU3AZJ8- Released
- Oct 28, 2026
- Android
- Android 17
- Bootloader bit
- 3
- Regions
- 43
- Stable builds
- 9
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.
Firmware history (9 builds)
Every stable build (PDA version) Samsung has published for the SM-F971B, 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) | Released | Android | Type | Bit | Regions | File |
|---|---|---|---|---|---|---|
F971BXXU3AZJ8 | Oct 28, 2026 | Android 17 | Feature | 3 | 43 | on server |
F971BXXS3AZIK | Oct 12, 2026 | Android 17 | Security | 3 | 1 | on server |
F971BXXU3AZI7 | Oct 12, 2026 | Android 17 | Feature | 3 | 1 | on server |
F971BXXS3AZIJ | Oct 5, 2026 | Android 17 | Security | 3 | 42 | on server |
F971BXXU3AZI5 | Sep 20, 2026 | Android 17 | Feature | 3 | 42 | on server |
F971BXXS2AZH7 | Aug 12, 2026 | Android 17 | Security | 2 | 42 | on server |
F971BXXU1AZGI | Jul 31, 2026 | Android 17 | Feature | 1 | 42 | on server |
F971BXXU1AZFW | Jul 23, 2026 | Android 17 | Feature | 1 | 42 | on server |
F971BXXU3AZJC | – | Android 17 | Feature | 3 | 43 | on server |
How to download SM-F971B 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-F971B -r EUXReplace EUX 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-F971B / EUX 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).