Galaxy S25 Ultra SM-S938U firmware

The latest stable build is S938USQSDDZJ1 (Android 17, security update), first released on Oct 23, 2026 – 14 days ago. Samsung has published 28 stable builds for this model since Jan 23, 2025: 19 security and 9 feature updates, from Android 15 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
S938USQSDDZJ1
Released
Oct 23, 2026
Android
Android 17
Bootloader bit
13
Regions
9
Stable builds
28

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
ATTUSA (AT&T)S938USQSDDZJ1Android 17Oct 23, 202625
CCTUSA (Comcast)S938USQSDDZJ1Android 17Oct 23, 202625
DSAUSAS938USQUCDZIFAndroid 17Oct 7, 202625
DSHUSAS938USQUCDZIFAndroid 17Oct 7, 202625
TMBUSA (T-Mobile)S938USQUCDZIFAndroid 17Oct 5, 202635
TMKUSA (MetroPCS)S938USQUCDZIFAndroid 17Oct 5, 202625
USCUSA (US Cellular)S938USQUCDZIFAndroid 17Oct 5, 202625
VZWUSA (Verizon)S938USQSDDZJ1Android 17Oct 23, 202625
XAAUSA (unlocked)S938USQSDDZJ1Android 17Oct 30, 202618

Firmware history (28 builds)

Every stable build (PDA version) Samsung has published for the SM-S938U, 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)ReleasedAndroidTypeBitRegionsFile
S938USQSDDZJ1Oct 23, 2026Android 17Security139on server
S938USQUCDZIFOct 5, 2026Android 17Feature129on server
S938USQSCCZF9Sep 1, 2026Android 16Security129on server
S938USQSBCZF5Jul 15, 2026Android 16Security119on server
S938USQUACZF1Jun 15, 2026Android 16Feature109on server
S938USQSACZE1May 27, 2026Android 16Security109on server
S938USQU9CZDPMay 11, 2026Android 16Feature99on server
S938USQS9BZCLApr 28, 2026Android 16Security99on server
S938USQS9BZBHApr 14, 2026Android 16Security99on server
S938USQS8BZBBMar 24, 2026Android 16Security89on server
S938USQS8BYLXFeb 26, 2026Android 16Security89on server
S938USQS7BYLRJan 19, 2026Android 16Security79on server
S938USQS7BYJ9Dec 12, 2025Android 16Security79on server
S938USQS7BYJ5Nov 21, 2025Android 16Security79on server
S938USQS6BYIFOct 22, 2025Android 16Security69on server
S938USQU5BYI3Sep 18, 2025Android 16Feature59on server
S938USQS5AYH2Aug 20, 2025Android 15Security59on server
S938USQS5AYE7Jul 17, 2025Android 15Security58on server
S938USQS4AYE3Jun 13, 2025Android 15Security46on server
S938USQS4AYE4Jun 12, 2025Android 15Security42on server
S938USQS3AYDGMay 5, 2025Android 15Security32on server
S938USQS3AYDFMay 2, 2025Android 15Security36on server
S938USQU2AYDBApr 23, 2025Android 15Feature22on server
S938USQU2AYD9Apr 21, 2025Android 15Feature26on server
S938USQS1AYBCMar 24, 2025Android 15Security18on server
S938USQU1AYB3Feb 14, 2025Android 15Feature18on server
S938USQU1AYA1Jan 23, 2025Android 15Feature18on server
S938USQUDDZJB–Android 17Feature139on server

Beta and test builds

Samsung's servers also list 10 beta build(s) for this model. They are not offered to regular users and are often removed after the next stable release.

BuildListedFile
S938USQU9ZZDDApr 20, 2026pulled
S938USQU9ZZD5Apr 15, 2026pulled
S938USQU8ZZCDMar 27, 2026pulled
S938USQU8ZZC7Mar 12, 2026pulled
S938USQU8ZZAOFeb 27, 2026pulled
S938USQU7ZZANFeb 19, 2026pulled
S938USQU7ZZALFeb 12, 2026pulled
S938USQU7ZZA3Jan 5, 2026pulled
S938USQU7ZYLHDec 22, 2025pulled
S938USQU7ZYL8Dec 8, 2025pulled

How to download SM-S938U 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-S938U -r ATT

Replace ATT with your region code. Step-by-step instructions, including a graphical alternative: How to download Samsung firmware.