Galaxy A25 5G SM-A256U1 firmware

The latest stable build is A256U1UESEEZH9 (Android 16, security update), first released on Sep 10, 2026 – 57 days ago. Samsung has published 22 stable builds for this model since Dec 18, 2023: 14 security and 8 feature updates, from Android 14 to Android 16. The current bootloader (binary) version is 14. A device on bit 14 only accepts firmware with bit 14 or higher – see downgrading and the bootloader bit.

Latest build
A256U1UESEEZH9
Released
Sep 10, 2026
Android
Android 16
Bootloader bit
14
Regions
13
Stable builds
22

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
ACGUSA (C Spire)A256U1UESEEZH9Android 16Sep 10, 202622
AIOUSA (Cricket)A256U1UESEEZH9Android 16Sep 10, 202622
ATTUSA (AT&T)A256U1UESEEZH9Android 16Sep 10, 202622
CCTUSA (Comcast)A256U1UESEEZH9Android 16Sep 10, 202622
DSAUSAA256U1UESEEZH9Android 16Sep 10, 202622
DSHUSAA256U1UESEEZH9Android 16Sep 10, 202622
LRAUSA (Bluegrass)A256U1UESEEZH9Android 16Sep 10, 202622
TMBUSA (T-Mobile)A256U1UESEEZH9Android 16Sep 10, 202622
TMKUSA (MetroPCS)A256U1UESEEZH9Android 16Sep 10, 202622
USCUSA (US Cellular)A256U1UESEEZH9Android 16Sep 10, 202622
VZWUSA (Verizon)A256U1UESEEZH9Android 16Sep 10, 202622
XAAUSA (unlocked)A256U1UESEEZH9Android 16Sep 10, 202622
XARUSA (Cellular South)A256U1UESEEZH9Android 16Sep 10, 202622

Firmware history (22 builds)

Every stable build (PDA version) Samsung has published for the SM-A256U1, 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
A256U1UESEEZH9Sep 10, 2026Android 16Security1413on server
A256U1UESDEZG4Aug 16, 2026Android 16Security1313on server
A256U1UEUCEZE6Jun 3, 2026Android 16Feature1213on server
A256U1UESCDZD7May 3, 2026Android 16Security1213on server
A256U1UESBDZB2Mar 15, 2026Android 16Security1113on server
A256U1UESADZA3Feb 8, 2026Android 16Security1013on server
A256U1UES9DYK3Nov 23, 2025Android 16Security913on server
A256U1UEU8DYIAOct 15, 2025Android 16Feature813on server
A256U1UES8CYG4Aug 19, 2025Android 15Security813on server
A256U1UEU7CYE2Jun 4, 2025Android 15Feature713on server
A256U1UES7BYD1Apr 21, 2025Android 14Security713on server
A256U1UES6BYA1Jan 22, 2025Android 14Security613on server
A256U1UEU6BXKBDec 22, 2024Android 14Feature613on server
A256U1UES5BXJ2Oct 24, 2024Android 14Security513on server
A256U1UES4BXI1Sep 17, 2024Android 14Security413on server
A256U1UEU4BXG6Aug 27, 2024Android 14Feature413on server
A256U1UEU3BXE5Jun 17, 2024Android 14Feature313on server
A256U1UES3AXE2May 24, 2024Android 14Security313on server
A256U1UES2AXD2Apr 18, 2024Android 14Security213on server
A256U1UEU1AXBBApr 8, 2024Android 14Feature113on server
A256U1UES1AXA3Jan 24, 2024Android 14Security113on server
A256U1UEU1AWL1Dec 18, 2023Android 14Feature113on server

How to download SM-A256U1 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-A256U1 -r XAA

Replace 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-A256U1 / XAA release notes on doc.samsungmobile.com. Each region page here links to the notes for that code.