Galaxy S25 FE SM-S731B firmware

The latest stable build is S731BXXUACZJC (Android 17, feature update), first released on Nov 5, 2026 – 1 days ago. Samsung has published 17 stable builds for this model since Aug 26, 2025: 11 security and 6 feature updates, from Android 16 to Android 17. The current bootloader (binary) version is 10. A device on bit 10 only accepts firmware with bit 10 or higher – see downgrading and the bootloader bit.

Latest build

S731BXXUACZJC

Released

Nov 5, 2026

Android

Android 17

Bootloader bit

10

Regions

82

Stable builds

17

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 (17 builds)

Every stable build (PDA version) Samsung has published for the SM-S731B, 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.

Beta and test builds

Samsung's servers also list 5 beta build(s) for this model. They are not offered to regular users and are often removed after the next stable release.

How to download SM-S731B 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-S731B -r ACR

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