A736BXXSAGZA1 – Galaxy A73 5G firmware

Build A736BXXSAGZA1 is a security update for the Galaxy A73 5G (SM-A736B) on Android 16 (One UI 8). It first appeared on Samsung's servers on Jan 20, 2026 (method) and has reached 51 regions so far. It keeps bootloader bit 10, so downgrading to the previous build A736BXXSAGYJ3 is still possible. Samsung still serves this file.

Model
SM-A736B
Android
Android 16
Type
Security
Bootloader bit
10
First released
Jan 20, 2026
Regions
51

Rollout timeline by region

The date each region code (CSC) first received A736BXXSAGZA1, counted from the first release.

CSCRegionReleasedRolloutVersion (PDA/CSC/MODEM)
XXVVietnamJan 20, 2026day 0A736BXXSAGZA1/A736BOLMAGZA1/A736BXXSAGZA1
XMEMalaysiaJan 20, 2026day 0A736BXXSAGZA1/A736BOLMAGZA1/A736BXXSAGZA1
XNZNew ZealandJan 20, 2026day 0A736BXXSAGZA1/A736BOLMAGZA1/A736BXXSAGZA1
XSPSingaporeJan 20, 2026day 0A736BXXSAGZA1/A736BOLMAGZA1/A736BXXSAGZA1
XTCPhilippinesJan 20, 2026day 0A736BXXSAGZA1/A736BOLMAGZA1/A736BXXSAGZA1
GLBPhilippines (Globe)Jan 20, 2026day 0A736BXXSAGZA1/A736BOLMAGZA1/A736BXXSAGZA1
MM1Singapore (M1)Jan 20, 2026day 0A736BXXSAGZA1/A736BOLMAGZA1/A736BXXSAGZA1
MYMMyanmarJan 20, 2026day 0A736BXXSAGZA1/A736BOLMAGZA1/A736BXXSAGZA1
SINSingapore (Singtel)Jan 20, 2026day 0A736BXXSAGZA1/A736BOLMAGZA1/A736BXXSAGZA1
STHSingapore (StarHub)Jan 20, 2026day 0A736BXXSAGZA1/A736BOLMAGZA1/A736BXXSAGZA1
THLThailandJan 20, 2026day 0A736BXXSAGZA1/A736BOLMAGZA1/A736BXXSAGZA1
TELAustralia (Telstra)Jan 22, 2026+2 daysA736BXXSAGZA1/A736BOLMAGZA1/A736BXXSAGZA1
VAUAustralia (Vodafone)Jan 22, 2026+2 daysA736BXXSAGZA1/A736BOLMAGZA1/A736BXXSAGZA1
XSAAustraliaJan 22, 2026+2 daysA736BXXSAGZA1/A736BOLMAGZA1/A736BXXSAGZA1
XIDIndonesiaJan 22, 2026+2 daysA736BXXSAGZA1/A736BOLEAGZA1/A736BXXSAGZA1
ACRGhanaJan 26, 2026+6 daysA736BXXSAGZA1/A736BOJMAGZA1/A736BXXSAGZA1
AFGAfghanistanJan 26, 2026+6 daysA736BXXSAGZA1/A736BOJMAGZA1/A736BXXSAGZA1
AFRAfricaJan 26, 2026+6 daysA736BXXSAGZA1/A736BOJMAGZA1/A736BXXSAGZA1
DKRSenegalJan 26, 2026+6 daysA736BXXSAGZA1/A736BOJMAGZA1/A736BXXSAGZA1
ECTNigeriaJan 26, 2026+6 daysA736BXXSAGZA1/A736BOJMAGZA1/A736BXXSAGZA1
EGYEgyptJan 26, 2026+6 daysA736BXXSAGZA1/A736BOJMAGZA1/A736BXXSAGZA1
ILOIsraelJan 26, 2026+6 daysA736BXXSAGZA1/A736BOJMAGZA1/A736BXXSAGZA1
KSASaudi ArabiaJan 26, 2026+6 daysA736BXXSAGZA1/A736BOJMAGZA1/A736BXXSAGZA1
LYSLibyaJan 26, 2026+6 daysA736BXXSAGZA1/A736BOJMAGZA1/A736BXXSAGZA1
MIDMiddle EastJan 26, 2026+6 daysA736BXXSAGZA1/A736BOJMAGZA1/A736BXXSAGZA1
MWDMoroccoJan 26, 2026+6 daysA736BXXSAGZA1/A736BOJMAGZA1/A736BXXSAGZA1
PAKPakistanJan 26, 2026+6 daysA736BXXSAGZA1/A736BOJMAGZA1/A736BXXSAGZA1
PKDPakistanJan 26, 2026+6 daysA736BXXSAGZA1/A736BOJMAGZA1/A736BXXSAGZA1
TUNTunisiaJan 26, 2026+6 daysA736BXXSAGZA1/A736BOJMAGZA1/A736BXXSAGZA1
TURTurkeyJan 26, 2026+6 daysA736BXXSAGZA1/A736BOJMAGZA1/A736BXXSAGZA1
XFASouth AfricaJan 26, 2026+6 daysA736BXXSAGZA1/A736BOJMAGZA1/A736BXXSAGZA1
XFESouth AfricaJan 26, 2026+6 daysA736BXXSAGZA1/A736BOJMAGZA1/A736BXXSAGZA1
XFVSouth Africa (Vodacom)Jan 26, 2026+6 daysA736BXXSAGZA1/A736BOJMAGZA1/A736BXXSAGZA1
XSGUnited Arab EmiratesJan 26, 2026+6 daysA736BXXSAGZA1/A736BOJMAGZA1/A736BXXSAGZA1
BVOBoliviaJan 26, 2026+6 daysA736BXXSAGZA1/A736BOWOAGYJ1/A736BXXSAGZA1
GTOGuatemalaJan 26, 2026+6 daysA736BXXSAGZA1/A736BOWOAGYJ1/A736BXXSAGZA1
ZTABrazil (Claro)Jan 26, 2026+6 daysA736BXXSAGZA1/A736BOWOAGYJ1/A736BXXSAGZA1
ZTMBrazil (TIM)Jan 26, 2026+6 daysA736BXXSAGZA1/A736BOWOAGYJ1/A736BXXSAGZA1
ZTOBrazilJan 26, 2026+6 daysA736BXXSAGZA1/A736BOWOAGYJ1/A736BXXSAGZA1
ZVVBrazil (Vivo)Jan 26, 2026+6 daysA736BXXSAGZA1/A736BOWOAGYJ1/A736BXXSAGZA1
CAUCaucasusJan 27, 2026+7 daysA736BXXSAGZA1/A736BOXEAGZA1/A736BXXSAGZA1
SEKUkraineJan 27, 2026+7 daysA736BXXSAGZA1/A736BOXEAGZA1/A736BXXSAGZA1
SERRussiaJan 27, 2026+7 daysA736BXXSAGZA1/A736BOXEAGZA1/A736BXXSAGZA1
SKZKazakhstanJan 27, 2026+7 daysA736BXXSAGZA1/A736BOXEAGZA1/A736BXXSAGZA1
BKDBangladeshFeb 2, 2026+13 daysA736BXXSAGZA1/A736BODMAGZA2/A736BXXSAGZA1
INSIndiaFeb 2, 2026+13 daysA736BXXSAGZA1/A736BODMAGZA2/A736BXXSAGZA1
CHEChile (Entel)Feb 12, 2026+23 daysA736BXXSAGZA1/A736BOWOAGYJ1/A736BXXSAGZA1
CHLChile (Claro)Feb 12, 2026+23 daysA736BXXSAGZA1/A736BOWOAGYJ1/A736BXXSAGZA1
CHOChileFeb 12, 2026+23 daysA736BXXSAGZA1/A736BOWOAGYJ1/A736BXXSAGZA1
CHTChile (Movistar)Feb 12, 2026+23 daysA736BXXSAGZA1/A736BOWOAGYJ1/A736BXXSAGZA1
CHXChileFeb 12, 2026+23 daysA736BXXSAGZA1/A736BOWOAGYJ1/A736BXXSAGZA1

Download and release notes

samloader download -m SM-A736B -r INS -v A736BXXSAGZA1/A736BODMAGZA2/A736BXXSAGZA1

Samsung's release notes and security patch level for this update: SM-A736B / INS on doc.samsungmobile.com. What each part of the build number means: decode A736BXXSAGZA1.