A276BXXS3AZHA – Galaxy A27 5G firmware

Build A276BXXS3AZHA is a security update for the Galaxy A27 5G (SM-A276B) on Android 16 (One UI 8). It first appeared on Samsung's servers on Sep 16, 2026 (method) and has reached 36 regions so far. It raises the bootloader bit from 2 to 3: once installed, the device no longer accepts firmware with bit 2 or lower, so a downgrade to A276BXXU2AZHE is blocked. Samsung still serves this file.

Model
SM-A276B
Android
Android 16
Type
Security
Bootloader bit
3
First released
Sep 16, 2026
Regions
36

Rollout timeline by region

The date each region code (CSC) first received A276BXXS3AZHA, counted from the first release.

CSCRegionReleasedRolloutVersion (PDA/CSC/MODEM)
EUXEurope (Multi-CSC)Sep 16, 2026day 0A276BXXS3AZHA/A276BOXM3AZHA/A276BXXS3AZHA
EUYEurope (Multi-CSC)Sep 16, 2026day 0A276BXXS3AZHA/A276BOXM3AZHA/A276BXXS3AZHA
PLSPoland (Plus)Sep 16, 2026day 0A276BXXS3AZHA/A276BOXM3AZHA/A276BXXS3AZHA
PRTPoland (Play)Sep 16, 2026day 0A276BXXS3AZHA/A276BOXM3AZHA/A276BXXS3AZHA
TURTurkeySep 16, 2026day 0A276BXXS3AZHA/A276BOXM3AZHA/A276BXXS3AZHA
CAUCaucasusSep 20, 2026+4 daysA276BXXS3AZHA/A276BOXM3AZHA/A276BXXS3AZHA
SERRussiaSep 20, 2026+4 daysA276BXXS3AZHA/A276BOXM3AZHA/A276BXXS3AZHA
SKZKazakhstanSep 20, 2026+4 daysA276BXXS3AZHA/A276BOXM3AZHA/A276BXXS3AZHA
XSAAustraliaSep 20, 2026+4 daysA276BXXS3AZHA/A276BOLM3AZHA/A276BXXS3AZHA
GLBPhilippines (Globe)Sep 20, 2026+4 daysA276BXXS3AZHA/A276BOLM3AZHA/A276BXXS3AZHA
MM1Singapore (M1)Sep 20, 2026+4 daysA276BXXS3AZHA/A276BOLM3AZHA/A276BXXS3AZHA
SINSingapore (Singtel)Sep 20, 2026+4 daysA276BXXS3AZHA/A276BOLM3AZHA/A276BXXS3AZHA
STHSingapore (StarHub)Sep 20, 2026+4 daysA276BXXS3AZHA/A276BOLM3AZHA/A276BXXS3AZHA
THLThailandSep 20, 2026+4 daysA276BXXS3AZHA/A276BOLM3AZHA/A276BXXS3AZHA
XIDIndonesiaSep 20, 2026+4 daysA276BXXS3AZHA/A276BOLM3AZHA/A276BXXS3AZHA
XMEMalaysiaSep 20, 2026+4 daysA276BXXS3AZHA/A276BOLM3AZHA/A276BXXS3AZHA
XNZNew ZealandSep 20, 2026+4 daysA276BXXS3AZHA/A276BOLM3AZHA/A276BXXS3AZHA
XSPSingaporeSep 20, 2026+4 daysA276BXXS3AZHA/A276BOLM3AZHA/A276BXXS3AZHA
XTCPhilippinesSep 20, 2026+4 daysA276BXXS3AZHA/A276BOLM3AZHA/A276BXXS3AZHA
XXVVietnamSep 20, 2026+4 daysA276BXXS3AZHA/A276BOLM3AZHA/A276BXXS3AZHA
AFRAfricaSep 20, 2026+4 daysA276BXXS3AZHA/A276BOJM3AZHA/A276BXXS3AZHB
ACRGhanaSep 20, 2026+4 daysA276BXXS3AZHA/A276BOJM3AZHA/A276BXXS3AZHB
AFGAfghanistanSep 20, 2026+4 daysA276BXXS3AZHA/A276BOJM3AZHA/A276BXXS3AZHB
DKRSenegalSep 20, 2026+4 daysA276BXXS3AZHA/A276BOJM3AZHA/A276BXXS3AZHB
ECTNigeriaSep 20, 2026+4 daysA276BXXS3AZHA/A276BOJM3AZHA/A276BXXS3AZHB
EGYEgyptSep 20, 2026+4 daysA276BXXS3AZHA/A276BOJM3AZHA/A276BXXS3AZHB
ILOIsraelSep 20, 2026+4 daysA276BXXS3AZHA/A276BOJM3AZHA/A276BXXS3AZHB
KSASaudi ArabiaSep 20, 2026+4 daysA276BXXS3AZHA/A276BOJM3AZHA/A276BXXS3AZHB
LYSLibyaSep 20, 2026+4 daysA276BXXS3AZHA/A276BOJM3AZHA/A276BXXS3AZHB
MIDMiddle EastSep 20, 2026+4 daysA276BXXS3AZHA/A276BOJM3AZHA/A276BXXS3AZHB
MWDMoroccoSep 20, 2026+4 daysA276BXXS3AZHA/A276BOJM3AZHA/A276BXXS3AZHB
PKDPakistanSep 20, 2026+4 daysA276BXXS3AZHA/A276BOJM3AZHA/A276BXXS3AZHB
TUNTunisiaSep 20, 2026+4 daysA276BXXS3AZHA/A276BOJM3AZHA/A276BXXS3AZHB
XFASouth AfricaSep 20, 2026+4 daysA276BXXS3AZHA/A276BOJM3AZHA/A276BXXS3AZHB
XFVSouth Africa (Vodacom)Sep 20, 2026+4 daysA276BXXS3AZHA/A276BOJM3AZHA/A276BXXS3AZHB
XSGUnited Arab EmiratesSep 20, 2026+4 daysA276BXXS3AZHA/A276BOJM3AZHA/A276BXXS3AZHB

Download and release notes

samloader download -m SM-A276B -r EUX -v A276BXXS3AZHA/A276BOXM3AZHA/A276BXXS3AZHA

Samsung's release notes and security patch level for this update: SM-A276B / EUX on doc.samsungmobile.com. What each part of the build number means: decode A276BXXS3AZHA.