Galaxy S23 Ultra SM-S918U firmware

The latest stable build is S918USQU8GZIF (Android 17, feature update), first released on Oct 19, 2026 – 18 days ago. Samsung has published 62 stable builds for this model since Feb 2, 2023: 39 security and 23 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.

Latest build
S918USQU8GZIF
Released
Oct 19, 2026
Android
Android 17
Bootloader bit
8
Regions
9
Stable builds
62

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)S918USQU8GZIFAndroid 17Oct 19, 202652
CCTUSA (Comcast)S918USQU8GZIFAndroid 17Oct 26, 202653
DSAUSAS918USQU8GZIFAndroid 17Oct 22, 202652
DSHUSAS918USQU8GZIFAndroid 17Oct 22, 202652
TMBUSA (T-Mobile)S918USQU8GZIFAndroid 17Oct 19, 202653
TMKUSA (MetroPCS)S918USQU8GZIFAndroid 17Oct 19, 202652
USCUSA (US Cellular)S918USQU8GZIFAndroid 17Oct 19, 202653
VZWUSA (Verizon)S918USQU8GZIFAndroid 17Oct 27, 202652
XAAUSA (unlocked)S918USQU8GZIFAndroid 17Oct 27, 202615

Firmware history (62 builds)

Every stable build (PDA version) Samsung has published for the SM-S918U, 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
S918USQU8GZIFOct 19, 2026Android 17Feature89on server
S918USQS8FZI1Sep 24, 2026Android 16Security89on server
S918USQS8FZH3Sep 2, 2026Android 16Security89on server
S918USQS8FZG1Jul 28, 2026Android 16Security89on server
S918USQS8FZF5Jun 29, 2026Android 16Security89on server
S918USQS7FZE3May 29, 2026Android 16Security79on server
S918USQU7FZE2May 21, 2026Android 16Feature79on server
S918USQS7EZCIApr 15, 2026Android 16Security79on server
S918USQS7EZC1Apr 6, 2026Android 16Security79on server
S918USQS7EZB6Mar 5, 2026Android 16Security79on server
S918USQS6EZA1Jan 27, 2026Android 16Security69on server
S918USQS6EYL1Dec 18, 2025Android 16Security69on server
S918USQS6EYK3Nov 21, 2025Android 16Security69on server
S918USQS6EYJ5Oct 30, 2025Android 16Security69on server
S918USQU6EYI7Oct 3, 2025Android 16Feature69on server
S918USQS6DYI3Sep 11, 2025Android 15Security68on server
S918USQS6DYG5Aug 20, 2025Android 15Security68on server
S918USQS6DYG1Jul 24, 2025Android 15Security68on server
S918USQS6DYF3Jun 23, 2025Android 15Security68on server
S918USQS6DYDBMay 27, 2025Android 15Security68on server
S918USQU6DYD9Apr 25, 2025Android 15Feature68on server
S918USQS6CYB3Mar 10, 2025Android 14Security68on server
S918USQU5CYB1Feb 17, 2025Android 14Feature58on server
S918USQS5CXL7Jan 16, 2025Android 14Security58on server
S918USQS5CXJXDec 16, 2024Android 14Security58on server
S918USQU5CXJTNov 27, 2024Android 14Feature51on server
S918USQU5CXJRNov 26, 2024Android 14Feature57on server
S918USQS5CXI8Nov 4, 2024Android 14Security58on server
S918USQS4CXI4Oct 12, 2024Android 14Security48on server
S918USQU4CXI1Sep 30, 2024Android 14Feature48on server
S918USQU4CXH7Sep 16, 2024Android 14Feature48on server
S918USQS4CXG8Aug 7, 2024Android 14Security48on server
S918USQS4CXE9Jul 15, 2024Android 14Security48on server
S918USQS3CXE3Jun 10, 2024Android 14Security38on server
S918USQS3CXD7May 16, 2024Android 14Security38on server
S918USQS2CXCNApr 11, 2024Android 14Security28on server
S918USQU2CXCGMar 29, 2024Android 14Feature27on server
S918USQS2BXBDMar 6, 2024Android 14Security28on server
S918USQS2BXADFeb 8, 2024Android 14Security28on server
S918USQS2BWL7Jan 12, 2024Android 14Security28on server
S918USQS2BWKADec 7, 2023Android 14Security28on server
S918USQU1BWK4Nov 10, 2023Android 14Feature18on server
S918USQS1AWIHOct 19, 2023Android 13Security12on server
S918USQS1AWIFOct 17, 2023Android 13Security15on server
S918USQU1AWHISep 8, 2023Android 13Feature12on server
S918USQS1AWHGSep 7, 2023Android 13Security11on server
S918USQS1AWHDSep 7, 2023Android 13Security15on server
S918USQU1AWH9Aug 18, 2023Android 13Feature11on server
S918USQU1AWGHAug 16, 2023Android 13Feature17on server
S918USQS1AWFDJul 3, 2023Android 13Security18on server
S918USQU1AWF3Jun 26, 2023Android 13Feature18on server
S918USQU1AWBKMay 22, 2023Android 13Feature11on server
S918USQU1AWC6May 22, 2023Android 13Feature11on server
S918USQU1AWCDMay 9, 2023Android 13Feature12on server
S918USQS1AWC9May 3, 2023Android 13Security16on server
S918USQU1AWC8Apr 10, 2023Android 13Feature18on server
S918USQS1AWBLMar 16, 2023Android 13Security12on server
S918USQS1AWBMMar 16, 2023Android 13Security16on server
S918USQU1AWBDFeb 24, 2023Android 13Feature12on server
S918USQU1AWBEFeb 24, 2023Android 13Feature16on server
S918USQU1AWA6Feb 14, 2023Android 13Feature18on server
S918USQU1AVKTFeb 2, 2023Android 13Feature18on 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.

BuildListedFile
S918USQU2ZXBG–pulled

How to download SM-S918U 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-S918U -r ATT

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