Galaxy M15 5G SM-M156B updates & firmware

This page tracks every software update Samsung's update servers list for the Samsung Galaxy M15 5G (SM-M156B). The latest stable build is M156BXXSCDZJ5 (Android 16, security update), first released on Oct 25, 2026. Samsung has published 35 stable builds for this model since Feb 27, 2024: 24 security and 11 feature updates, from Android 14 to Android 16. 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.

Rollout: build M156BXXSCDZJ5 (Android 16 (One UI 8)) is live in all 16 regions, first released on Oct 25, 2026 in CAU (Caucasus). In India (INS) the latest official firmware (flash file) is M156BXXSCDZJ5 from Oct 26, 2026.

Latest build
M156BXXSCDZJ5
Released
Oct 25, 2026
Android
Android 16
Bootloader bit
12
Regions
16
Stable builds
35

Update policy

Samsung promised 4 major Android upgrades and 5 years of security updates for the Galaxy M15 5G, counted from its launch in February 2024 with Android 14. That makes Android 18 (One UI 10) the last major version and security updates continue until about February 2029. It is currently on Android 16 (One UI 8), so 2 major upgrades are still to come.

OS upgrades promised
4
Security updates
5 years
Last major version
Android 18 (One UI 10)
Security support until
February 2029
Current version
Android 16 (One UI 8)
Status
Supported

Source: Samsung. Samsung counts from the global launch and does not publish exact end dates; the dates above are launch month plus the promised years.

Compare all models: Samsung update policy by model.

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
BKDBangladeshM156BXXSCDZJ5Android 16Oct 26, 202616
CAUCaucasusM156BXXSCDZJ5Android 16Oct 25, 202616
COOColombiaM156BXXSCDZJ5Android 16Oct 27, 202617
EGYEgyptM156BXXSCDZJ5Android 16Oct 25, 202617
EUXEurope (Multi-CSC)M156BXXSCDZJ5Android 16Oct 25, 202618
EUYEurope (Multi-CSC)M156BXXSCDZJ5Android 16Oct 25, 202618
INSIndiaM156BXXSCDZJ5Android 16Oct 26, 202619
MIDMiddle EastM156BXXSCDZJ5Android 16Oct 25, 202617
NPBNepalM156BXXSCDZJ5Android 16Oct 26, 202617
SKZKazakhstanM156BXXSCDZJ5Android 16Oct 25, 202617
SLKSri LankaM156BXXSCDZJ5Android 16Oct 26, 202617
TURTurkeyM156BXXSCDZJ5Android 16Oct 25, 202617
XFASouth AfricaM156BXXSCDZJ5Android 16Oct 25, 202614
XIDIndonesiaM156BXXSCDZJ5Android 16Oct 25, 202617
XXVVietnamM156BXXSCDZJ5Android 16Oct 25, 202617
ZTOBrazilM156BXXSCDZJ5Android 16Oct 27, 202617

Firmware history (35 builds)

Every stable build (PDA version) Samsung has published for the SM-M156B, newest first. “Released” is the earliest date the build appeared on Samsung's servers in any region (how dates work). “pulled” means Samsung no longer serves the file for that build, usually because newer builds replaced it (details).

Build (PDA)ReleasedAndroidTypeBitRegionsFile
M156BXXSCDZJ5Oct 25, 2026Android 16Security1216on server
M156BXXSBDZG5Aug 2, 2026Android 16Security1116on server
M156BXXSADZF2Jun 24, 2026Android 16Security1016on server
M156BXXUADZE7Jun 10, 2026Android 16Feature1016on server
M156BXXSACZE1May 18, 2026Android 16Security1016on server
M156BXXS9CZB3Mar 8, 2026Android 16Security916on server
M156BXXS8CZA3Jan 23, 2026Android 16Security816on server
M156BXXU7CYJ5Oct 28, 2025Android 16Feature716on server
M156BXXS7BYH1Aug 21, 2025Android 15Security716on server
M156BXXU6BYE7Jun 1, 2025Android 15Feature616on server
M156BXXS6AYD2Apr 24, 2025Android 14Security62on server
M156BXXS6AYD5Apr 23, 2025Android 14Security64on server
M156BXXS6AYD4Apr 13, 2025Android 14Security610on server
M156BXXS5AYA2Feb 4, 2025Android 14Security54on server
M156BXXS5AYA3Jan 29, 2025Android 14Security52on server
M156BXXS5AYA1Jan 20, 2025Android 14Security510on server
M156BXXU4AXL2Dec 26, 2024Android 14Feature42on server
M156BXXU4AXL1Dec 24, 2024Android 14Feature44on server
M156BXXU4AXKFDec 15, 2024Android 14Feature410on server
M156BXXU3AXIHOct 15, 2024Android 14Feature31on server
M156BXXS3AXIJOct 8, 2024Android 14Security31on server
M156BXXS3AXIKOct 7, 2024Android 14Security32on server
M156BXXS3AXILOct 7, 2024Android 14Security32on server
M156BXXS3AXIGOct 6, 2024Android 14Security39on server
M156BXXU2AXG2Aug 5, 2024Android 14Feature21on server
M156BXXU2AXFBJul 9, 2024Android 14Feature22on server
M156BXXS2AXF3Jun 18, 2024Android 14Security21on server
M156BXXS2AXF2Jun 18, 2024Android 14Security24on server
M156BXXS2AXF1Jun 18, 2024Android 14Security210on server
M156BXXS2AXE4Jun 3, 2024Android 14Security23on server
M156BXXS2AXE5May 29, 2024Android 14Security21on server
M156BXXS2AXE3May 21, 2024Android 14Security210on server
M156BXXS1AXD2Apr 21, 2024Android 14Security11on server
M156BXXU1AXB7Mar 12, 2024Android 14Feature14on server
M156BXXU1AXB5Feb 27, 2024Android 14Feature111on server

How to download SM-M156B 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-M156B -r EUX

Replace EUX 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-M156B / EUX release notes on doc.samsungmobile.com. Each region page here links to the notes for that code. We don't show the patch level ourselves because Samsung's update servers don't report it (why).