Galaxy S26 Ultra SM-S948U firmware
The latest stable build is S948USQU5BZJA (Android 17, feature update), first released on Oct 29, 2026 – 8 days ago. Samsung has published 16 stable builds for this model since Feb 26, 2026: 9 security and 7 feature updates, from Android 16 to Android 17. The current bootloader (binary) version is 5. A device on bit 5 only accepts firmware with bit 5 or higher – see downgrading and the bootloader bit.
- Latest build
S948USQU5BZJA- Released
- Oct 29, 2026
- Android
- Android 17
- Bootloader bit
- 5
- Regions
- 9
- Stable builds
- 16
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 |
|---|---|---|---|---|---|
AIO | USA (Cricket) | S948USQU5BZJA | Android 17 | Oct 29, 2026 | 12 |
ATT | USA (AT&T) | S948USQU5BZJA | Android 17 | Oct 29, 2026 | 13 |
CCT | USA (Comcast) | S948USQU5BZJA | Android 17 | Oct 29, 2026 | 13 |
DSA | USA | S948USQU5BZJA | Android 17 | Oct 30, 2026 | 13 |
DSH | USA | S948USQU5BZJA | Android 17 | Oct 30, 2026 | 13 |
TMB | USA (T-Mobile) | S948USQU5BZJA | Android 17 | Oct 29, 2026 | 20 |
TMK | USA (MetroPCS) | S948USQU5BZJA | Android 17 | Oct 29, 2026 | 13 |
USC | USA (US Cellular) | S948USQU5BZJA | Android 17 | Oct 29, 2026 | 13 |
VZW | USA (Verizon) | S948USQU5BZJA | Android 17 | Oct 30, 2026 | 13 |
Firmware history (16 builds)
Every stable build (PDA version) Samsung has published for the SM-S948U, newest first. “” is the earliest date the build appeared on Samsung's servers in any region. “” means Samsung no longer serves the file for that build.
| Build (PDA) | Released | Android | Type | Bit | Regions | File |
|---|---|---|---|---|---|---|
S948USQU5BZJA | Oct 29, 2026 | Android 17 | Feature | 5 | 9 | on server |
S948USQS4BZIG | Oct 8, 2026 | Android 17 | Security | 4 | 9 | on server |
S948USQU4BZID | Sep 23, 2026 | Android 17 | Feature | 4 | 9 | on server |
S948USQS4AZHL | Aug 31, 2026 | Android 16 | Security | 4 | 9 | on server |
S948USQS4AZG3 | Jul 13, 2026 | Android 16 | Security | 4 | 9 | on server |
S948USQS3AZF1 | Jun 16, 2026 | Android 16 | Security | 3 | 9 | on server |
S948USQS2AZE1 | May 27, 2026 | Android 16 | Security | 2 | 9 | on server |
S948USQU2AZDI | May 4, 2026 | Android 16 | Feature | 2 | 9 | on server |
S948USQS2AZDG | Apr 28, 2026 | Android 16 | Security | 2 | 9 | on server |
S948USQS2AZCO | Apr 6, 2026 | Android 16 | Security | 2 | 9 | on server |
S948USQU1AZCF | Mar 25, 2026 | Android 16 | Feature | 1 | 9 | on server |
S948USQU1AZB4 | Mar 12, 2026 | Android 16 | Feature | 1 | 1 | on server |
S948USQS1AZC8 | Mar 10, 2026 | Android 16 | Security | 1 | 1 | on server |
S948USQS1AZC7 | Mar 10, 2026 | Android 16 | Security | 1 | 7 | on server |
S948USQU1AZAB | Feb 26, 2026 | Android 16 | Feature | 1 | 7 | on server |
S948USQU1AZAF | Feb 26, 2026 | Android 16 | Feature | 1 | 1 | on server |
Beta and test builds
Samsung's servers also list 7 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 |
|---|---|---|
S948USQU4ZZHK | Aug 28, 2026 | pulled |
S948USQU4ZZHE | Aug 26, 2026 | pulled |
S948USQU4ZZH6 | Aug 13, 2026 | pulled |
S948USQU4ZZG4 | Jul 20, 2026 | pulled |
S948USQU3ZZF7 | Jun 17, 2026 | pulled |
S948USQU2ZZEQ | May 26, 2026 | pulled |
S948USQU2ZZEF | May 14, 2026 | pulled |
How to download SM-S948U 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-S948U -r AIOReplace AIO with your region code. Step-by-step instructions, including a graphical alternative:
How to download Samsung firmware.