A266BXXSBCZG2 – Galaxy A26 5G firmware

Build A266BXXSBCZG2 is a security update for the Galaxy A26 5G (SM-A266B) on Android 16 (One UI 8). It first appeared on Samsung's servers on Jul 22, 2026 (method) and has reached 46 regions so far. It raises the bootloader bit from 10 to 11: once installed, the device no longer accepts firmware with bit 10 or lower, so a downgrade to A266BXXSACZF2 is blocked. Samsung still serves this file.

Model
SM-A266B
Android
Android 16
Type
Security
Bootloader bit
11
First released
Jul 22, 2026
Regions
46

Rollout timeline by region

The date each region code (CSC) first received A266BXXSBCZG2, counted from the first release.

CSCRegionReleasedRolloutVersion (PDA/CSC/MODEM)
XMEMalaysiaJul 22, 2026day 0A266BXXSBCZG2/A266BOLMBCZG2/A266BXXSBCZG2
XXVVietnamJul 22, 2026day 0A266BXXSBCZG2/A266BOLMBCZG2/A266BXXSBCZG2
BOGFrance (Bouygues)Jul 26, 2026+4 daysA266BXXSBCZG2/A266BOXMBCZG2/A266BXXSBCZG2
EUXEurope (Multi-CSC)Jul 26, 2026+4 daysA266BXXSBCZG2/A266BOXMBCZG2/A266BXXSBCZG2
EUYEurope (Multi-CSC)Jul 26, 2026+4 daysA266BXXSBCZG2/A266BOXMBCZG2/A266BXXSBCZG2
MEOPortugal (MEO)Jul 26, 2026+4 daysA266BXXSBCZG2/A266BOXMBCZG2/A266BXXSBCZG2
MOTSlovenia (Telekom)Jul 26, 2026+4 daysA266BXXSBCZG2/A266BOXMBCZG2/A266BXXSBCZG2
MSRSerbiaJul 26, 2026+4 daysA266BXXSBCZG2/A266BOXMBCZG2/A266BXXSBCZG2
PLSPoland (Plus)Jul 26, 2026+4 daysA266BXXSBCZG2/A266BOXMBCZG2/A266BXXSBCZG2
PRTPoland (Play)Jul 26, 2026+4 daysA266BXXSBCZG2/A266BOXMBCZG2/A266BXXSBCZG2
SFRFrance (SFR)Jul 26, 2026+4 daysA266BXXSBCZG2/A266BOXMBCZG2/A266BXXSBCZG2
SIMSlovenia (A1)Jul 26, 2026+4 daysA266BXXSBCZG2/A266BOXMBCZG2/A266BXXSBCZG2
SWCSwitzerlandJul 26, 2026+4 daysA266BXXSBCZG2/A266BOXMBCZG2/A266BXXSBCZG2
TOPSerbia/MontenegroJul 26, 2026+4 daysA266BXXSBCZG2/A266BOXMBCZG2/A266BXXSBCZG2
TURTurkeyJul 26, 2026+4 daysA266BXXSBCZG2/A266BOXMBCZG2/A266BXXSBCZG2
VIPCroatia (A1)Jul 26, 2026+4 daysA266BXXSBCZG2/A266BOXMBCZG2/A266BXXSBCZG2
BRITaiwanJul 27, 2026+5 daysA266BXXSBCZG2/A266BOLMBCZG2/A266BXXSBCZG2
GLBPhilippines (Globe)Jul 27, 2026+5 daysA266BXXSBCZG2/A266BOLMBCZG2/A266BXXSBCZG2
MM1Singapore (M1)Jul 27, 2026+5 daysA266BXXSBCZG2/A266BOLMBCZG2/A266BXXSBCZG2
SINSingapore (Singtel)Jul 27, 2026+5 daysA266BXXSBCZG2/A266BOLMBCZG2/A266BXXSBCZG2
STHSingapore (StarHub)Jul 27, 2026+5 daysA266BXXSBCZG2/A266BOLMBCZG2/A266BXXSBCZG2
THLThailandJul 27, 2026+5 daysA266BXXSBCZG2/A266BOLMBCZG2/A266BXXSBCZG2
XNZNew ZealandJul 27, 2026+5 daysA266BXXSBCZG2/A266BOLMBCZG2/A266BXXSBCZG2
XSAAustraliaJul 27, 2026+5 daysA266BXXSBCZG2/A266BOLMBCZG2/A266BXXSBCZG2
XSPSingaporeJul 27, 2026+5 daysA266BXXSBCZG2/A266BOLMBCZG2/A266BXXSBCZG2
XTCPhilippinesJul 27, 2026+5 daysA266BXXSBCZG2/A266BOLMBCZG2/A266BXXSBCZG2
XIDIndonesiaJul 27, 2026+5 daysA266BXXSBCZG2/A266BOLMBCZG2/A266BXXSBCZG2
CAUCaucasusJul 27, 2026+5 daysA266BXXSBCZG2/A266BOXMBCZG2/A266BXXSBCZG2
SKZKazakhstanJul 27, 2026+5 daysA266BXXSBCZG2/A266BOXMBCZG2/A266BXXSBCZG2
ACRGhanaJul 28, 2026+6 daysA266BXXSBCZG2/A266BOJMBCZG2/A266BXXSBCZG2
AFGAfghanistanJul 28, 2026+6 daysA266BXXSBCZG2/A266BOJMBCZG2/A266BXXSBCZG2
AFRAfricaJul 28, 2026+6 daysA266BXXSBCZG2/A266BOJMBCZG2/A266BXXSBCZG2
DKRSenegalJul 28, 2026+6 daysA266BXXSBCZG2/A266BOJMBCZG2/A266BXXSBCZG2
ECTNigeriaJul 28, 2026+6 daysA266BXXSBCZG2/A266BOJMBCZG2/A266BXXSBCZG2
EGYEgyptJul 28, 2026+6 daysA266BXXSBCZG2/A266BOJMBCZG2/A266BXXSBCZG2
KSASaudi ArabiaJul 28, 2026+6 daysA266BXXSBCZG2/A266BOJMBCZG2/A266BXXSBCZG2
LYSLibyaJul 28, 2026+6 daysA266BXXSBCZG2/A266BOJMBCZG2/A266BXXSBCZG2
MIDMiddle EastJul 28, 2026+6 daysA266BXXSBCZG2/A266BOJMBCZG2/A266BXXSBCZG2
MWDMoroccoJul 28, 2026+6 daysA266BXXSBCZG2/A266BOJMBCZG2/A266BXXSBCZG2
PAKPakistanJul 28, 2026+6 daysA266BXXSBCZG2/A266BOJMBCZG2/A266BXXSBCZG2
PKDPakistanJul 28, 2026+6 daysA266BXXSBCZG2/A266BOJMBCZG2/A266BXXSBCZG2
TUNTunisiaJul 28, 2026+6 daysA266BXXSBCZG2/A266BOJMBCZG2/A266BXXSBCZG2
XFASouth AfricaJul 28, 2026+6 daysA266BXXSBCZG2/A266BOJMBCZG2/A266BXXSBCZG2
XFVSouth Africa (Vodacom)Jul 28, 2026+6 daysA266BXXSBCZG2/A266BOJMBCZG2/A266BXXSBCZG2
XSGUnited Arab EmiratesJul 28, 2026+6 daysA266BXXSBCZG2/A266BOJMBCZG2/A266BXXSBCZG2
ILOIsraelAug 4, 2026+13 daysA266BXXSBCZG2/A266BOJMBCZG2/A266BXXSBCZG2

Download and release notes

samloader download -m SM-A266B -r EUX -v A266BXXSBCZG2/A266BOXMBCZG2/A266BXXSBCZG2

Samsung's release notes and security patch level for this update: SM-A266B / EUX on doc.samsungmobile.com. What each part of the build number means: decode A266BXXSBCZG2.