Galaxy Z Fold5 SM-F946U updates & firmware
This page tracks every software update Samsung's update servers list for the Samsung Galaxy Z Fold5 (SM-F946U). The latest stable build is F946USQU8HZIJ (Android 17, feature update), first released on Oct 18, 2026. Samsung has published 55 stable builds for this model since Jul 26, 2023: 44 security and 11 feature updates, from Android 13 to Android 17. The current bootloader (binary) version is 8. A device on bit 8 only accepts firmware with bit 8 or higher – see downgrading and the bootloader bit.
Rollout: build F946USQU8HZIJ (Android 17 (One UI 9)) is live in all 7 regions, first released on Oct 18, 2026 in ATT (USA (AT&T)).
- Latest build
F946USQU8HZIJ- Released
- Oct 18, 2026
- Android
- Android 17
- Bootloader bit
- 8
- Regions
- 7
- Stable builds
- 55
Update policy
Samsung promised 4 major Android upgrades and 5 years of security updates for the Galaxy Z Fold5, counted from its launch in July 2023 with Android 13. That makes Android 17 (One UI 9) the last major version and security updates continue until about July 2028. It is already on Android 17 (One UI 9), its last promised major version – from here on it gets security updates only.
- OS upgrades promised
- 4
- Security updates
- 5 years
- Last major version
- Android 17 (One UI 9)
- Security support until
- July 2028
- 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.
| CSC | Region | Latest build | Android | Released | Builds |
|---|---|---|---|---|---|
ATT | USA (AT&T) | F946USQU8HZIJ | Android 17 | Oct 18, 2026 | 45 |
CCT | USA (Comcast) | F946USQU8HZIJ | Android 17 | Oct 25, 2026 | 46 |
TMB | USA (T-Mobile) | F946USQU8HZIJ | Android 17 | Oct 25, 2026 | 46 |
TMK | USA (MetroPCS) | F946USQU8HZIJ | Android 17 | Oct 25, 2026 | 45 |
USC | USA (US Cellular) | F946USQU8HZIJ | Android 17 | Oct 25, 2026 | 46 |
VZW | USA (Verizon) | F946USQU8HZIJ | Android 17 | Oct 26, 2026 | 45 |
XAA | USA (unlocked) | F946USQU8HZIJ | Android 17 | Oct 26, 2026 | 15 |
Firmware history (55 builds)
Every stable build (PDA version) Samsung has published for the SM-F946U, 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 |
|---|---|---|---|---|---|---|
F946USQU8HZIJ | Oct 18, 2026 | Android 17 | Feature | 8 | 7 | on server |
F946USQS8GZI1 | Sep 23, 2026 | Android 16 | Security | 8 | 7 | on server |
F946USQS8GZH5 | Sep 2, 2026 | Android 16 | Security | 8 | 7 | on server |
F946USQS8GZG3 | Jul 27, 2026 | Android 16 | Security | 8 | 7 | on server |
F946USQS8GZF1 | Jun 28, 2026 | Android 16 | Security | 8 | 7 | on server |
F946USQS8GZE8 | May 28, 2026 | Android 16 | Security | 8 | 7 | on server |
F946USQU7GZE3 | May 20, 2026 | Android 16 | Feature | 7 | 7 | on server |
F946USQS7FZC5 | Apr 23, 2026 | Android 16 | Security | 7 | 7 | on server |
F946USQS7FZC1 | Mar 30, 2026 | Android 16 | Security | 7 | 7 | on server |
F946USQS7FZB6 | Mar 1, 2026 | Android 16 | Security | 7 | 7 | on server |
F946USQS6FZA1 | Jan 26, 2026 | Android 16 | Security | 6 | 7 | on server |
F946USQS6FYL2 | Dec 17, 2025 | Android 16 | Security | 6 | 7 | on server |
F946USQS6FYK2 | Nov 23, 2025 | Android 16 | Security | 6 | 7 | on server |
F946USQS6FYJ3 | Oct 29, 2025 | Android 16 | Security | 6 | 7 | on server |
F946USQU6FYI8 | Oct 5, 2025 | Android 16 | Feature | 6 | 7 | on server |
F946USQS6EYI1 | Sep 17, 2025 | Android 15 | Security | 6 | 6 | on server |
F946USQS6EYGB | Aug 20, 2025 | Android 15 | Security | 6 | 6 | on server |
F946USQS6EYG7 | Jul 27, 2025 | Android 15 | Security | 6 | 6 | on server |
F946USQS6EYF3 | Jun 22, 2025 | Android 15 | Security | 6 | 6 | on server |
F946USQS6EYE2 | May 20, 2025 | Android 15 | Security | 6 | 6 | on server |
F946USQU6EYD9 | Apr 24, 2025 | Android 15 | Feature | 6 | 6 | on server |
F946USQS6DYB3 | Mar 10, 2025 | Android 14 | Security | 6 | 1 | on server |
F946USQS6DYB2 | Mar 9, 2025 | Android 14 | Security | 6 | 5 | on server |
F946USQS5DYA6 | Feb 13, 2025 | Android 14 | Security | 5 | 1 | on server |
F946USQS5DYA5 | Feb 12, 2025 | Android 14 | Security | 5 | 5 | on server |
F946USQS5DXLG | Jan 13, 2025 | Android 14 | Security | 5 | 1 | on server |
F946USQS5DXLF | Jan 12, 2025 | Android 14 | Security | 5 | 5 | on server |
F946USQS5DXKE | Dec 15, 2024 | Android 14 | Security | 5 | 1 | on server |
F946USQS5DXKC | Dec 10, 2024 | Android 14 | Security | 5 | 5 | on server |
F946USQU5DXKD | Nov 28, 2024 | Android 14 | Feature | 5 | 1 | on server |
F946USQU5DXK8 | Nov 24, 2024 | Android 14 | Feature | 5 | 5 | on server |
F946USQS4DXI9 | Oct 10, 2024 | Android 14 | Security | 4 | 6 | on server |
F946USQS4DXI3 | Sep 24, 2024 | Android 14 | Security | 4 | 6 | on server |
F946USQU4DXH7 | Sep 15, 2024 | Android 14 | Feature | 4 | 6 | on server |
F946USQS4CXG6 | Aug 6, 2024 | Android 14 | Security | 4 | 6 | on server |
F946USQS4CXG2 | Jul 10, 2024 | Android 14 | Security | 4 | 6 | on server |
F946USQS3CXE9 | Jun 9, 2024 | Android 14 | Security | 3 | 6 | on server |
F946USQS3CXE3 | May 13, 2024 | Android 14 | Security | 3 | 6 | on server |
F946USQS2CXCI | Apr 7, 2024 | Android 14 | Security | 2 | 6 | on server |
F946USQU2CXCF | Mar 28, 2024 | Android 14 | Feature | 2 | 6 | on server |
F946USQS2BXBE | Mar 10, 2024 | Android 14 | Security | 2 | 5 | on server |
F946USQS2BXBF | Mar 10, 2024 | Android 14 | Security | 2 | 1 | on server |
F946USQS2BXAF | Feb 12, 2024 | Android 14 | Security | 2 | 1 | on server |
F946USQS2BXAD | Feb 6, 2024 | Android 14 | Security | 2 | 5 | on server |
F946USQS1BWL8 | Jan 7, 2024 | Android 14 | Security | 1 | 1 | on server |
F946USQS1BWL7 | Jan 4, 2024 | Android 14 | Security | 1 | 5 | on server |
F946USQS1BWL4 | Dec 19, 2023 | Android 14 | Security | 1 | 1 | on server |
F946USQS1BWKI | Dec 12, 2023 | Android 14 | Security | 1 | 5 | on server |
F946USQU1BWL1 | Dec 11, 2023 | Android 14 | Feature | 1 | 1 | on server |
F946USQU1BWK9 | Nov 20, 2023 | Android 14 | Feature | 1 | 5 | on server |
F946USQS1AWJ7 | Nov 8, 2023 | Android 13 | Security | 1 | 6 | on server |
F946USQS1AWI3 | Oct 3, 2023 | Android 13 | Security | 1 | 6 | on server |
F946USQS1AWI1 | Sep 13, 2023 | Android 13 | Security | 1 | 6 | on server |
F946USQS1AWH3 | Aug 15, 2023 | Android 13 | Security | 1 | 6 | on server |
F946USQU1AWG4 | Jul 26, 2023 | Android 13 | Feature | 1 | 6 | on server |
Beta and test builds
Samsung's servers also list 1 beta build(s) for this model. They are not offered to regular users and are often removed after the next stable release.
| Build | Listed | File |
|---|---|---|
F946USQU2ZXBG | – | pulled |
How to download SM-F946U 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-F946U -r XAAReplace 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-F946U / 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).