Galaxy A05 SM-A055M firmware

The latest stable build is A055MUBSKDZI3 (Android 15, security update), first released on Oct 13, 2026 – 24 days ago. Samsung has published 40 stable builds for this model since Aug 28, 2023: 29 security and 11 feature updates, from Android 13 to Android 15. The current bootloader (binary) version is 20. A device on bit 20 only accepts firmware with bit 20 or higher – see downgrading and the bootloader bit.

Latest build
A055MUBSKDZI3
Released
Oct 13, 2026
Android
Android 15
Bootloader bit
20
Regions
39
Stable builds
40

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
AROArgentinaA055MUBSKDZI3Android 15Oct 13, 202631
BVOBoliviaA055MUBSKDZI3Android 15Oct 13, 202630
CDRDominican RepublicA055MUBSKDZI3Android 15Oct 13, 202630
CGUGuatemala (Claro)A055MUBSKDZI3Android 15Oct 13, 202630
CHEChile (Entel)A055MUBSKDZI3Android 15Oct 28, 202630
CHLChile (Claro)A055MUBSKDZI3Android 15Oct 28, 202630
CHOChileA055MUBSKDZI3Android 15Oct 28, 202630
CHTChile (Movistar)A055MUBSKDZI3Android 15Oct 28, 202630
CHXChileA055MUBSKDZI3Android 15Oct 28, 202630
COBColombia (Movistar)A055MUBSKDZI3Android 15Oct 13, 202630
COLColombiaA055MUBSKDZI3Android 15Oct 13, 202630
COMColombia (Claro)A055MUBSKDZI3Android 15Oct 13, 202629
COOColombiaA055MUBSKDZI3Android 15Oct 13, 202630
CRCCosta RicaA055MUBSKDZI3Android 15Oct 13, 202630
CTIArgentina (Claro)A055MUBSKDZI3Android 15Oct 13, 202631
DORDominican RepublicA055MUBSKDZI3Android 15Oct 13, 202630
EBEEcuadorA055MUBSKDZI3Android 15Oct 13, 202630
ECOEcuadorA055MUBSKDZI3Android 15Oct 13, 202630
GLONigeria (Glo)A055MUBSKDZI3Android 15Oct 13, 202630
GTOGuatemalaA055MUBSKDZI3Android 15Oct 13, 202630
IUSMexico (AT&T)A055MUBSKDZI3Android 15Oct 13, 202631
MXOMexicoA055MUBSKDZI3Android 15Oct 13, 202631
PEOPeruA055MUBSKDZI3Android 15Oct 13, 202630
PETPeru (Movistar)A055MUBSKDZI3Android 15Oct 13, 202630
PGUGuatemalaA055MUBSKDZI3Android 15Oct 13, 202631
PNTPanamaA055MUBSKDZI3Android 15Oct 13, 202630
PSNArgentina (Personal)A055MUBSKDZI3Android 15Oct 13, 202631
SAMOceaniaA055MUBSKDZI3Android 15Oct 13, 202630
TCEMexico (Telcel)A055MUBSKDZI3Android 15Oct 13, 202631
TGPParaguayA055MUBSKDZI3Android 15Oct 13, 202630
TMMMyanmarA055MUBSKDZI3Android 15Oct 13, 202631
TPAPanamaA055MUBSKDZI3Android 15Oct 13, 202630
UFNArgentina (Movistar)A055MUBSKDZI3Android 15Oct 13, 202631
UPOUruguayA055MUBSKDZI3Android 15Oct 13, 202630
UYOUruguayA055MUBSKDZI3Android 15Oct 13, 202630
ZTABrazil (Claro)A055MUBSKDZI3Android 15Oct 13, 202630
ZTMBrazil (TIM)A055MUBSKDZI3Android 15Oct 13, 202630
ZTOBrazilA055MUBSKDZI3Android 15Oct 13, 202630
ZVVBrazil (Vivo)A055MUBSKDZI3Android 15Oct 13, 202630

Firmware history (40 builds)

Every stable build (PDA version) Samsung has published for the SM-A055M, 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
A055MUBSKDZI3Oct 13, 2026Android 15Security2039on server
A055MUBSJDZF1Jun 29, 2026Android 15Security1939on server
A055MUBSIDZE1Jun 11, 2026Android 15Security1839on server
A055MUBSHDZD1Apr 14, 2026Android 15Security1739on server
A055MUBUGDZB2Mar 12, 2026Android 15Feature1639on server
A055MUBSFDZA1Jan 29, 2026Android 15Security1539on server
A055MUBSEDYL2Dec 22, 2025Android 15Security1439on server
A055MUBSEDYL1Dec 15, 2025Android 15Security1439on server
A055MUBSDDYJ1Nov 6, 2025Android 15Security1339on server
A055MUBSCDYI1Nov 5, 2025Android 15Security1239on server
A055MUBSBDYH1Sep 3, 2025Android 15Security1139on server
A055MUBSADYGAJul 28, 2025Android 15Security1039on server
A055MUBS9DYG9Jul 23, 2025Android 15Security939on server
A055MUBS9CYE3May 28, 2025Android 14Security939on server
A055MUBS8CYC3Apr 15, 2025Android 14Security838on server
A055MUBS8CYC2Apr 3, 2025Android 14Security89on server
A055MUBU8CYB1Mar 17, 2025Android 14Feature839on server
A055MUBS8CXL4Jan 21, 2025Android 14Security825on server
A055MUBS8CXL3Jan 21, 2025Android 14Security814on server
A055MUBS8CXK2Dec 18, 2024Android 14Security825on server
A055MUBS8CXK1Dec 18, 2024Android 14Security814on server
A055MUBS7CXJ2Oct 29, 2024Android 14Security725on server
A055MUBS7CXJ1Oct 28, 2024Android 14Security714on server
A055MUBS6CXI4Oct 8, 2024Android 14Security625on server
A055MUBS6CXI3Oct 2, 2024Android 14Security614on server
A055MUBU5CXI1Sep 10, 2024Android 14Feature525on server
A055MUBU5CXH1Aug 29, 2024Android 14Feature514on server
A055MUBS5CXG1Jul 15, 2024Android 14Security511on server
A055MUBS5CXF8Jul 11, 2024Android 14Security528on server
A055MUBU4CXF7Jun 24, 2024Android 14Feature411on server
A055MUBU4CXF5Jun 17, 2024Android 14Feature428on server
A055MUBS4BXE1Jun 16, 2024Android 14Security439on server
A055MUBS3BXD2Apr 15, 2024Android 14Security339on server
A055MUBS2BXB1Feb 23, 2024Android 14Security239on server
A055MUBU2BWL6Jan 23, 2024Android 14Feature239on server
A055MUBS2AWK4Dec 29, 2023Android 13Security235on server
A055MUBU2AWL1Dec 12, 2023Android 13Feature24on server
A055MUBU1AWH5Nov 16, 2023Android 13Feature15on server
A055MUBU2AWK1Nov 10, 2023Android 13Feature239on server
A055MUBU1AWH4Aug 28, 2023Android 13Feature134on server

How to download SM-A055M 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-A055M -r UFN

Replace UFN 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-A055M / UFN release notes on doc.samsungmobile.com. Each region page here links to the notes for that code.