S721BXXSEDZH9 – Galaxy S24 FE firmware

Build S721BXXSEDZH9 is a security update for the Galaxy S24 FE (SM-S721B) on Android 16 (One UI 8). It first appeared on Samsung's servers on Aug 31, 2026 (method) and has reached 93 regions so far. It raises the bootloader bit from 13 to 14: once installed, the device no longer accepts firmware with bit 13 or lower, so a downgrade to S721BXXSDDZG1 is blocked. Samsung still serves this file.

Model
SM-S721B
Android
Android 16
Type
Security
Bootloader bit
14
First released
Aug 31, 2026
Regions
93

Rollout timeline by region

The date each region code (CSC) first received S721BXXSEDZH9, counted from the first release.

CSCRegionReleasedRolloutVersion (PDA/CSC/MODEM)
INSIndiaAug 31, 2026day 0S721BXXSEDZH9/S721BODMEDZH9/S721BXXSEDZH9
BOGFrance (Bouygues)Sep 3, 2026+3 daysS721BXXSEDZH9/S721BOXMEDZH9/S721BXXSEDZH9
EUXEurope (Multi-CSC)Sep 3, 2026+3 daysS721BXXSEDZH9/S721BOXMEDZH9/S721BXXSEDZH9
EUYEurope (Multi-CSC)Sep 3, 2026+3 daysS721BXXSEDZH9/S721BOXMEDZH9/S721BXXSEDZH9
MEOPortugal (MEO)Sep 3, 2026+3 daysS721BXXSEDZH9/S721BOXMEDZH9/S721BXXSEDZH9
MOBAustria (A1)Sep 3, 2026+3 daysS721BXXSEDZH9/S721BOXMEDZH9/S721BXXSEDZH9
MOTSlovenia (Telekom)Sep 3, 2026+3 daysS721BXXSEDZH9/S721BOXMEDZH9/S721BXXSEDZH9
MSRSerbiaSep 3, 2026+3 daysS721BXXSEDZH9/S721BOXMEDZH9/S721BXXSEDZH9
PLSPoland (Plus)Sep 3, 2026+3 daysS721BXXSEDZH9/S721BOXMEDZH9/S721BXXSEDZH9
PRTPoland (Play)Sep 3, 2026+3 daysS721BXXSEDZH9/S721BOXMEDZH9/S721BXXSEDZH9
SFRFrance (SFR)Sep 3, 2026+3 daysS721BXXSEDZH9/S721BOXMEDZH9/S721BXXSEDZH9
SIMSlovenia (A1)Sep 3, 2026+3 daysS721BXXSEDZH9/S721BOXMEDZH9/S721BXXSEDZH9
SWCSwitzerlandSep 3, 2026+3 daysS721BXXSEDZH9/S721BOXMEDZH9/S721BXXSEDZH9
TOPSerbia/MontenegroSep 3, 2026+3 daysS721BXXSEDZH9/S721BOXMEDZH9/S721BXXSEDZH9
TURTurkeySep 3, 2026+3 daysS721BXXSEDZH9/S721BOXMEDZH9/S721BXXSEDZH9
VIPCroatia (A1)Sep 3, 2026+3 daysS721BXXSEDZH9/S721BOXMEDZH9/S721BXXSEDZH9
CAUCaucasusSep 3, 2026+3 daysS721BXXSEDZH9/S721BOXEEDZH9/S721BXXSEDZH9
SKZKazakhstanSep 3, 2026+3 daysS721BXXSEDZH9/S721BOXEEDZH9/S721BXXSEDZH9
GLBPhilippines (Globe)Sep 3, 2026+3 daysS721BXXSEDZH9/S721BOLMEDZH9/S721BXXSEDZH9
MM1Singapore (M1)Sep 3, 2026+3 daysS721BXXSEDZH9/S721BOLMEDZH9/S721BXXSEDZH9
OPSAustralia (Optus)Sep 3, 2026+3 daysS721BXXSEDZH9/S721BOLMEDZH9/S721BXXSEDZH9
SINSingapore (Singtel)Sep 3, 2026+3 daysS721BXXSEDZH9/S721BOLMEDZH9/S721BXXSEDZH9
STHSingapore (StarHub)Sep 3, 2026+3 daysS721BXXSEDZH9/S721BOLMEDZH9/S721BXXSEDZH9
TELAustralia (Telstra)Sep 3, 2026+3 daysS721BXXSEDZH9/S721BOLMEDZH9/S721BXXSEDZH9
THLThailandSep 3, 2026+3 daysS721BXXSEDZH9/S721BOLMEDZH9/S721BXXSEDZH9
VAUAustralia (Vodafone)Sep 3, 2026+3 daysS721BXXSEDZH9/S721BOLMEDZH9/S721BXXSEDZH9
XMEMalaysiaSep 3, 2026+3 daysS721BXXSEDZH9/S721BOLMEDZH9/S721BXXSEDZH9
XNZNew ZealandSep 3, 2026+3 daysS721BXXSEDZH9/S721BOLMEDZH9/S721BXXSEDZH9
XSAAustraliaSep 3, 2026+3 daysS721BXXSEDZH9/S721BOLMEDZH9/S721BXXSEDZH9
XSPSingaporeSep 3, 2026+3 daysS721BXXSEDZH9/S721BOLMEDZH9/S721BXXSEDZH9
XTCPhilippinesSep 3, 2026+3 daysS721BXXSEDZH9/S721BOLMEDZH9/S721BXXSEDZH9
XXVVietnamSep 3, 2026+3 daysS721BXXSEDZH9/S721BOLMEDZH9/S721BXXSEDZH9
XIDIndonesiaSep 3, 2026+3 daysS721BXXSEDZH9/S721BOLEEDZH9/S721BXXSEDZH9
ACRGhanaSep 3, 2026+3 daysS721BXXSEDZH9/S721BOJMEDZH9/S721BXXSEDZH9
AFGAfghanistanSep 3, 2026+3 daysS721BXXSEDZH9/S721BOJMEDZH9/S721BXXSEDZH9
AFRAfricaSep 3, 2026+3 daysS721BXXSEDZH9/S721BOJMEDZH9/S721BXXSEDZH9
DKRSenegalSep 3, 2026+3 daysS721BXXSEDZH9/S721BOJMEDZH9/S721BXXSEDZH9
ECTNigeriaSep 3, 2026+3 daysS721BXXSEDZH9/S721BOJMEDZH9/S721BXXSEDZH9
EGYEgyptSep 3, 2026+3 daysS721BXXSEDZH9/S721BOJMEDZH9/S721BXXSEDZH9
ILOIsraelSep 3, 2026+3 daysS721BXXSEDZH9/S721BOJMEDZH9/S721BXXSEDZH9
KSASaudi ArabiaSep 3, 2026+3 daysS721BXXSEDZH9/S721BOJMEDZH9/S721BXXSEDZH9
LYSLibyaSep 3, 2026+3 daysS721BXXSEDZH9/S721BOJMEDZH9/S721BXXSEDZH9
MIDMiddle EastSep 3, 2026+3 daysS721BXXSEDZH9/S721BOJMEDZH9/S721BXXSEDZH9
MWDMoroccoSep 3, 2026+3 daysS721BXXSEDZH9/S721BOJMEDZH9/S721BXXSEDZH9
PAKPakistanSep 3, 2026+3 daysS721BXXSEDZH9/S721BOJMEDZH9/S721BXXSEDZH9
PKDPakistanSep 3, 2026+3 daysS721BXXSEDZH9/S721BOJMEDZH9/S721BXXSEDZH9
TUNTunisiaSep 3, 2026+3 daysS721BXXSEDZH9/S721BOJMEDZH9/S721BXXSEDZH9
XFASouth AfricaSep 3, 2026+3 daysS721BXXSEDZH9/S721BOJMEDZH9/S721BXXSEDZH9
XFVSouth Africa (Vodacom)Sep 3, 2026+3 daysS721BXXSEDZH9/S721BOJMEDZH9/S721BXXSEDZH9
XSGUnited Arab EmiratesSep 3, 2026+3 daysS721BXXSEDZH9/S721BOJMEDZH9/S721BXXSEDZH9
AROArgentinaSep 3, 2026+3 daysS721BXXSEDZH9/S721BOWOEDZH9/S721BXXSEDZH9
BVOBoliviaSep 3, 2026+3 daysS721BXXSEDZH9/S721BOWOEDZH9/S721BXXSEDZH9
CDRDominican RepublicSep 3, 2026+3 daysS721BXXSEDZH9/S721BOWOEDZH9/S721BXXSEDZH9
CGUGuatemala (Claro)Sep 3, 2026+3 daysS721BXXSEDZH9/S721BOWOEDZH9/S721BXXSEDZH9
CHEChile (Entel)Sep 3, 2026+3 daysS721BXXSEDZH9/S721BOWOEDZH9/S721BXXSEDZH9
CHLChile (Claro)Sep 3, 2026+3 daysS721BXXSEDZH9/S721BOWOEDZH9/S721BXXSEDZH9
CHOChileSep 3, 2026+3 daysS721BXXSEDZH9/S721BOWOEDZH9/S721BXXSEDZH9
CHTChile (Movistar)Sep 3, 2026+3 daysS721BXXSEDZH9/S721BOWOEDZH9/S721BXXSEDZH9
CHXChileSep 3, 2026+3 daysS721BXXSEDZH9/S721BOWOEDZH9/S721BXXSEDZH9
COBColombia (Movistar)Sep 3, 2026+3 daysS721BXXSEDZH9/S721BOWOEDZH9/S721BXXSEDZH9
COLColombiaSep 3, 2026+3 daysS721BXXSEDZH9/S721BOWOEDZH9/S721BXXSEDZH9
COMColombia (Claro)Sep 3, 2026+3 daysS721BXXSEDZH9/S721BOWOEDZH9/S721BXXSEDZH9
COOColombiaSep 3, 2026+3 daysS721BXXSEDZH9/S721BOWOEDZH9/S721BXXSEDZH9
CRCCosta RicaSep 3, 2026+3 daysS721BXXSEDZH9/S721BOWOEDZH9/S721BXXSEDZH9
CTIArgentina (Claro)Sep 3, 2026+3 daysS721BXXSEDZH9/S721BOWOEDZH9/S721BXXSEDZH9
DORDominican RepublicSep 3, 2026+3 daysS721BXXSEDZH9/S721BOWOEDZH9/S721BXXSEDZH9
EBEEcuadorSep 3, 2026+3 daysS721BXXSEDZH9/S721BOWOEDZH9/S721BXXSEDZH9
ECOEcuadorSep 3, 2026+3 daysS721BXXSEDZH9/S721BOWOEDZH9/S721BXXSEDZH9
GLONigeria (Glo)Sep 3, 2026+3 daysS721BXXSEDZH9/S721BOWOEDZH9/S721BXXSEDZH9
GTOGuatemalaSep 3, 2026+3 daysS721BXXSEDZH9/S721BOWOEDZH9/S721BXXSEDZH9
IUSMexico (AT&T)Sep 3, 2026+3 daysS721BXXSEDZH9/S721BOWOEDZH9/S721BXXSEDZH9
MXOMexicoSep 3, 2026+3 daysS721BXXSEDZH9/S721BOWOEDZH9/S721BXXSEDZH9
PEOPeruSep 3, 2026+3 daysS721BXXSEDZH9/S721BOWOEDZH9/S721BXXSEDZH9
PETPeru (Movistar)Sep 3, 2026+3 daysS721BXXSEDZH9/S721BOWOEDZH9/S721BXXSEDZH9
PGUGuatemalaSep 3, 2026+3 daysS721BXXSEDZH9/S721BOWOEDZH9/S721BXXSEDZH9
PSNArgentina (Personal)Sep 3, 2026+3 daysS721BXXSEDZH9/S721BOWOEDZH9/S721BXXSEDZH9
SAMOceaniaSep 3, 2026+3 daysS721BXXSEDZH9/S721BOWOEDZH9/S721BXXSEDZH9
TCEMexico (Telcel)Sep 3, 2026+3 daysS721BXXSEDZH9/S721BOWOEDZH9/S721BXXSEDZH9
TGPParaguaySep 3, 2026+3 daysS721BXXSEDZH9/S721BOWOEDZH9/S721BXXSEDZH9
TMMMyanmarSep 3, 2026+3 daysS721BXXSEDZH9/S721BOWOEDZH9/S721BXXSEDZH9
TPAPanamaSep 3, 2026+3 daysS721BXXSEDZH9/S721BOWOEDZH9/S721BXXSEDZH9
UFNArgentina (Movistar)Sep 3, 2026+3 daysS721BXXSEDZH9/S721BOWOEDZH9/S721BXXSEDZH9
UPOUruguaySep 3, 2026+3 daysS721BXXSEDZH9/S721BOWOEDZH9/S721BXXSEDZH9
UYOUruguaySep 3, 2026+3 daysS721BXXSEDZH9/S721BOWOEDZH9/S721BXXSEDZH9
ZTABrazil (Claro)Sep 3, 2026+3 daysS721BXXSEDZH9/S721BOWOEDZH9/S721BXXSEDZH9
ZTMBrazil (TIM)Sep 3, 2026+3 daysS721BXXSEDZH9/S721BOWOEDZH9/S721BXXSEDZH9
ZTOBrazilSep 3, 2026+3 daysS721BXXSEDZH9/S721BOWOEDZH9/S721BXXSEDZH9
ZVVBrazil (Vivo)Sep 3, 2026+3 daysS721BXXSEDZH9/S721BOWOEDZH9/S721BXXSEDZH9
PNTPanamaSep 3, 2026+3 daysS721BXXSEDZH9/S721BOWOEDZH9/S721BXXSEDZH9
BKDBangladeshSep 8, 2026+8 daysS721BXXSEDZH9/S721BODMEDZH9/S721BXXSEDZH9
BNGBelgiumSep 8, 2026+8 daysS721BXXSEDZH9/S721BODMEDZH9/S721BXXSEDZH9
NPBNepalSep 8, 2026+8 daysS721BXXSEDZH9/S721BODMEDZH9/S721BXXSEDZH9
SLKSri LankaSep 8, 2026+8 daysS721BXXSEDZH9/S721BODMEDZH9/S721BXXSEDZH9

Download and release notes

samloader download -m SM-S721B -r EUX -v S721BXXSEDZH9/S721BOXMEDZH9/S721BXXSEDZH9

Samsung's release notes and security patch level for this update: SM-S721B / EUX on doc.samsungmobile.com. What each part of the build number means: decode S721BXXSEDZH9.