Galaxy A35 5G SM-A356U1 firmware

The latest stable build is A356U1UEUCEZJ3 (Android 17, feature update), first released on Nov 4, 2026 – 2 days ago. Samsung has published 23 stable builds for this model since Mar 19, 2024: 15 security and 8 feature updates, from Android 14 to Android 17. The current bootloader (binary) version is 12. A device on bit 12 only accepts firmware with bit 12 or higher – see downgrading and the bootloader bit.

Latest build
A356U1UEUCEZJ3
Released
Nov 4, 2026
Android
Android 17
Bootloader bit
12
Regions
13
Stable builds
23

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)A356U1UEUCEZJ3Android 17Nov 4, 202623
AIOUSA (Cricket)A356U1UEUCEZJ3Android 17Nov 4, 202623
ATTUSA (AT&T)A356U1UEUCEZJ3Android 17Nov 4, 202623
CCTUSA (Comcast)A356U1UEUCEZJ3Android 17Nov 4, 202623
DSAUSAA356U1UEUCEZJ3Android 17Nov 4, 202623
DSHUSAA356U1UEUCEZJ3Android 17Nov 4, 202623
LRAUSA (Bluegrass)A356U1UEUCEZJ3Android 17Nov 4, 202623
TMBUSA (T-Mobile)A356U1UEUCEZJ3Android 17Nov 4, 202623
TMKUSA (MetroPCS)A356U1UEUCEZJ3Android 17Nov 4, 202623
USCUSA (US Cellular)A356U1UEUCEZJ3Android 17Nov 4, 202623
VZWUSA (Verizon)A356U1UEUCEZJ3Android 17Nov 4, 202623
XAAUSA (unlocked)A356U1UEUCEZJ3Android 17Nov 4, 202623
XARUSA (Cellular South)A356U1UEUCEZJ3Android 17Nov 4, 202623

Firmware history (23 builds)

Every stable build (PDA version) Samsung has published for the SM-A356U1, 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
A356U1UEUCEZJ3Nov 4, 2026Android 17Feature1213on server
A356U1UESCDZH1Sep 16, 2026Android 16Security1213on server
A356U1UESBDZG4Jul 28, 2026Android 16Security1113on server
A356U1UEUADZE8Jun 2, 2026Android 16Feature1013on server
A356U1UESACZD5May 6, 2026Android 16Security1013on server
A356U1UES9CZB6Mar 15, 2026Android 16Security913on server
A356U1UES8CZA4Feb 9, 2026Android 16Security813on server
A356U1UES7CYK3Dec 21, 2025Android 16Security713on server
A356U1UES6CYJ2Nov 5, 2025Android 16Security613on server
A356U1UEU6CYI9Oct 12, 2025Android 16Feature613on server
A356U1UES6BYG2Aug 4, 2025Android 15Security613on server
A356U1UES5BYF2Jul 15, 2025Android 15Security513on server
A356U1UEU5BYE4Jun 8, 2025Android 15Feature513on server
A356U1UES5AYD1Apr 20, 2025Android 14Security513on server
A356U1UES4AYA1Jan 28, 2025Android 14Security413on server
A356U1UES4AXK7Dec 15, 2024Android 14Security413on server
A356U1UEU4AXK3Dec 3, 2024Android 14Feature413on server
A356U1UES3AXI5Oct 9, 2024Android 14Security313on server
A356U1UEU3AXH3Aug 29, 2024Android 14Feature313on server
A356U1UES3AXG3Jul 31, 2024Android 14Security313on server
A356U1UES2AXE1May 30, 2024Android 14Security213on server
A356U1UEU1AXD3May 21, 2024Android 14Feature113on server
A356U1UEU1AXBCMar 19, 2024Android 14Feature113on server

How to download SM-A356U1 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-A356U1 -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-A356U1 / XAA release notes on doc.samsungmobile.com. Each region page here links to the notes for that code.