Galaxy Quantum5 SM-A556S firmware

The latest stable build is A556SKSUBEZJ1 (Android 17, feature update), first released on Oct 20, 2026 – 17 days ago. Samsung has published 27 stable builds for this model since Sep 4, 2024: 19 security and 8 feature updates, from Android 14 to Android 17. The current bootloader (binary) version is 11. A device on bit 11 only accepts firmware with bit 11 or higher – see downgrading and the bootloader bit.

Latest build
A556SKSUBEZJ1
Released
Oct 20, 2026
Android
Android 17
Bootloader bit
11
Regions
1
Stable builds
27

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
SKCSouth Korea (SKT)A556SKSUBEZJ1Android 17Oct 20, 202637

Firmware history (27 builds)

Every stable build (PDA version) Samsung has published for the SM-A556S, 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
A556SKSUBEZJ1Oct 20, 2026Android 17Feature111on server
A556SKSSBDZI1Sep 16, 2026Android 16Security111on server
A556SKSSADZH3Aug 31, 2026Android 16Security101on server
A556SKSS9DZG1Jul 14, 2026Android 16Security91on server
A556SKSS8DZF2Jun 16, 2026Android 16Security81on server
A556SKSU7DZE5May 25, 2026Android 16Feature71on server
A556SKSS7CZC2Apr 8, 2026Android 16Security71on server
A556SKSS6CZC1Mar 26, 2026Android 16Security61on server
A556SKSS6CZB2Feb 26, 2026Android 16Security61on server
A556SKSS6CYL2Jan 6, 2026Android 16Security61on server
A556SKSS6CYL1Dec 10, 2025Android 16Security61on server
A556SKSS6CYK3Nov 19, 2025Android 16Security61on server
A556SKSS6CYJ3Oct 26, 2025Android 16Security61on server
A556SKSU6CYI6Sep 28, 2025Android 16Feature61on server
A556SKSS6BYH1Aug 12, 2025Android 15Security61on server
A556SKSS6BYG1Jul 16, 2025Android 15Security61on server
A556SKSU5BYF2Jun 18, 2025Android 15Feature51on server
A556SKSU4BYD9May 7, 2025Android 15Feature41on server
A556SKSS4AYC5Apr 2, 2025Android 14Security41on server
A556SKSS3AYB6Mar 5, 2025Android 14Security31on server
A556SKSS3AYB1Feb 12, 2025Android 14Security31on server
A556SKSS3AYA1Jan 23, 2025Android 14Security31on server
A556SKSU3AXL3Jan 1, 2025Android 14Feature31on server
A556SKSU3AXK1Dec 1, 2024Android 14Feature31on server
A556SKSS2AXJ2Oct 20, 2024Android 14Security21on server
A556SKSS1AXI1Sep 26, 2024Android 14Security11on server
A556SKSU1AXG3Sep 4, 2024Android 14Feature11on 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
A556SKSUBZZI9Oct 6, 2026pulled
A556SKSUBZZI4Sep 20, 2026pulled
A556SKSUAZZI1Sep 8, 2026pulled
A556SKSU7ZZDBApr 26, 2026pulled
A556SKSU7ZZD5Apr 14, 2026pulled
A556SKSU6ZYI4Sep 14, 2025pulled
A556SKSU6ZYH8Sep 2, 2025pulled
A556SKSU4ZYD7Apr 23, 2025pulled
A556SKSU4ZYD2Apr 14, 2025pulled
A556SKSU4ZYD1Apr 3, 2025pulled

How to download SM-A556S 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-A556S -r SKC

Replace SKC 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-A556S / SKC release notes on doc.samsungmobile.com. Each region page here links to the notes for that code.