S921BXXUHEZIF – Galaxy S24 firmware
Build S921BXXUHEZIF is a feature update for the Galaxy S24 (SM-S921B)
on Android 17 (One UI 9). It first appeared on Samsung's servers on Oct 11, 2026 (method) and has reached
88 regions so far. It keeps bootloader bit 17, so downgrading to the previous build S921BXXSHDZI1 is still possible. Samsung still serves this file.
- Model
- SM-S921B
- Android
- Android 17
- Type
- Feature
- Bootloader bit
- 17
- First released
- Oct 11, 2026
- Regions
- 88
Rollout timeline by region
The date each region code (CSC) first received S921BXXUHEZIF, counted from the first release.
| CSC | Region | Released | Rollout | Version (PDA/CSC/MODEM) |
|---|---|---|---|---|
EUY | Europe (Multi-CSC) | Oct 11, 2026 | day 0 | S921BXXUHEZIF/S921BOXMHEZIF/S921BXXUHEZIF |
AFG | Afghanistan | Oct 12, 2026 | +1 day | S921BXXUHEZIF/S921BOXMHEZIF/S921BXXUHEZIF |
CAU | Caucasus | Oct 12, 2026 | +1 day | S921BXXUHEZIF/S921BOXMHEZIF/S921BXXUHEZIF |
EGY | Egypt | Oct 12, 2026 | +1 day | S921BXXUHEZIF/S921BOXMHEZIF/S921BXXUHEZIF |
KSA | Saudi Arabia | Oct 12, 2026 | +1 day | S921BXXUHEZIF/S921BOXMHEZIF/S921BXXUHEZIF |
LYS | Libya | Oct 12, 2026 | +1 day | S921BXXUHEZIF/S921BOXMHEZIF/S921BXXUHEZIF |
MID | Middle East | Oct 12, 2026 | +1 day | S921BXXUHEZIF/S921BOXMHEZIF/S921BXXUHEZIF |
PAK | Pakistan | Oct 12, 2026 | +1 day | S921BXXUHEZIF/S921BOXMHEZIF/S921BXXUHEZIF |
SER | Russia | Oct 12, 2026 | +1 day | S921BXXUHEZIF/S921BOXMHEZIF/S921BXXUHEZIF |
SKZ | Kazakhstan | Oct 12, 2026 | +1 day | S921BXXUHEZIF/S921BOXMHEZIF/S921BXXUHEZIF |
TUN | Tunisia | Oct 12, 2026 | +1 day | S921BXXUHEZIF/S921BOXMHEZIF/S921BXXUHEZIF |
XSG | United Arab Emirates | Oct 12, 2026 | +1 day | S921BXXUHEZIF/S921BOXMHEZIF/S921BXXUHEZIF |
XXV | Vietnam | Oct 12, 2026 | +1 day | S921BXXUHEZIF/S921BOXMHEZIF/S921BXXUHEZIF |
BOG | France (Bouygues) | Oct 12, 2026 | +1 day | S921BXXUHEZIF/S921BOXMHEZIF/S921BXXUHEZIF |
EVR | United Kingdom (EE) | Oct 12, 2026 | +1 day | S921BXXUHEZIF/S921BOXMHEZIF/S921BXXUHEZIF |
MEO | Portugal (MEO) | Oct 12, 2026 | +1 day | S921BXXUHEZIF/S921BOXMHEZIF/S921BXXUHEZIF |
MOB | Austria (A1) | Oct 12, 2026 | +1 day | S921BXXUHEZIF/S921BOXMHEZIF/S921BXXUHEZIF |
MOT | Slovenia (Telekom) | Oct 12, 2026 | +1 day | S921BXXUHEZIF/S921BOXMHEZIF/S921BXXUHEZIF |
MSR | Serbia | Oct 12, 2026 | +1 day | S921BXXUHEZIF/S921BOXMHEZIF/S921BXXUHEZIF |
O2C | Czech Republic (O2) | Oct 12, 2026 | +1 day | S921BXXUHEZIF/S921BOXMHEZIF/S921BXXUHEZIF |
PLS | Poland (Plus) | Oct 12, 2026 | +1 day | S921BXXUHEZIF/S921BOXMHEZIF/S921BXXUHEZIF |
PRT | Poland (Play) | Oct 12, 2026 | +1 day | S921BXXUHEZIF/S921BOXMHEZIF/S921BXXUHEZIF |
SFR | France (SFR) | Oct 12, 2026 | +1 day | S921BXXUHEZIF/S921BOXMHEZIF/S921BXXUHEZIF |
SIM | Slovenia (A1) | Oct 12, 2026 | +1 day | S921BXXUHEZIF/S921BOXMHEZIF/S921BXXUHEZIF |
SWC | Switzerland | Oct 12, 2026 | +1 day | S921BXXUHEZIF/S921BOXMHEZIF/S921BXXUHEZIF |
TOP | Serbia/Montenegro | Oct 12, 2026 | +1 day | S921BXXUHEZIF/S921BOXMHEZIF/S921BXXUHEZIF |
VIP | Croatia (A1) | Oct 12, 2026 | +1 day | S921BXXUHEZIF/S921BOXMHEZIF/S921BXXUHEZIF |
EUX | Europe (Multi-CSC) | Oct 12, 2026 | +1 day | S921BXXUHEZIF/S921BOXMHEZIF/S921BXXUHEZIF |
INS | India | Oct 12, 2026 | +1 day | S921BXXUHEZIF/S921BOXMHEZIF/S921BXXUHEZIF |
NPB | Nepal | Oct 12, 2026 | +1 day | S921BXXUHEZIF/S921BOXMHEZIF/S921BXXUHEZIF |
SLK | Sri Lanka | Oct 12, 2026 | +1 day | S921BXXUHEZIF/S921BOXMHEZIF/S921BXXUHEZIF |
ACR | Ghana | Oct 12, 2026 | +1 day | S921BXXUHEZIF/S921BOXMHEZIF/S921BXXUHEZIF |
AFR | Africa | Oct 12, 2026 | +1 day | S921BXXUHEZIF/S921BOXMHEZIF/S921BXXUHEZIF |
DKR | Senegal | Oct 12, 2026 | +1 day | S921BXXUHEZIF/S921BOXMHEZIF/S921BXXUHEZIF |
ECT | Nigeria | Oct 12, 2026 | +1 day | S921BXXUHEZIF/S921BOXMHEZIF/S921BXXUHEZIF |
GLB | Philippines (Globe) | Oct 12, 2026 | +1 day | S921BXXUHEZIF/S921BOXMHEZIF/S921BXXUHEZIF |
ILO | Israel | Oct 12, 2026 | +1 day | S921BXXUHEZIF/S921BOXMHEZIF/S921BXXUHEZIF |
MM1 | Singapore (M1) | Oct 12, 2026 | +1 day | S921BXXUHEZIF/S921BOXMHEZIF/S921BXXUHEZIF |
MWD | Morocco | Oct 12, 2026 | +1 day | S921BXXUHEZIF/S921BOXMHEZIF/S921BXXUHEZIF |
OPS | Australia (Optus) | Oct 12, 2026 | +1 day | S921BXXUHEZIF/S921BOXMHEZIF/S921BXXUHEZIF |
PKD | Pakistan | Oct 12, 2026 | +1 day | S921BXXUHEZIF/S921BOXMHEZIF/S921BXXUHEZIF |
SIN | Singapore (Singtel) | Oct 12, 2026 | +1 day | S921BXXUHEZIF/S921BOXMHEZIF/S921BXXUHEZIF |
STH | Singapore (StarHub) | Oct 12, 2026 | +1 day | S921BXXUHEZIF/S921BOXMHEZIF/S921BXXUHEZIF |
TEL | Australia (Telstra) | Oct 12, 2026 | +1 day | S921BXXUHEZIF/S921BOXMHEZIF/S921BXXUHEZIF |
THL | Thailand | Oct 12, 2026 | +1 day | S921BXXUHEZIF/S921BOXMHEZIF/S921BXXUHEZIF |
TUR | Turkey | Oct 12, 2026 | +1 day | S921BXXUHEZIF/S921BOXMHEZIF/S921BXXUHEZIF |
VAU | Australia (Vodafone) | Oct 12, 2026 | +1 day | S921BXXUHEZIF/S921BOXMHEZIF/S921BXXUHEZIF |
XFA | South Africa | Oct 12, 2026 | +1 day | S921BXXUHEZIF/S921BOXMHEZIF/S921BXXUHEZIF |
XFE | South Africa | Oct 12, 2026 | +1 day | S921BXXUHEZIF/S921BOXMHEZIF/S921BXXUHEZIF |
XFV | South Africa (Vodacom) | Oct 12, 2026 | +1 day | S921BXXUHEZIF/S921BOXMHEZIF/S921BXXUHEZIF |
XID | Indonesia | Oct 12, 2026 | +1 day | S921BXXUHEZIF/S921BOLEHEZIF/S921BXXUHEZIF |
XME | Malaysia | Oct 12, 2026 | +1 day | S921BXXUHEZIF/S921BOXMHEZIF/S921BXXUHEZIF |
XNZ | New Zealand | Oct 12, 2026 | +1 day | S921BXXUHEZIF/S921BOXMHEZIF/S921BXXUHEZIF |
XSA | Australia | Oct 12, 2026 | +1 day | S921BXXUHEZIF/S921BOXMHEZIF/S921BXXUHEZIF |
XSP | Singapore | Oct 12, 2026 | +1 day | S921BXXUHEZIF/S921BOXMHEZIF/S921BXXUHEZIF |
XTC | Philippines | Oct 12, 2026 | +1 day | S921BXXUHEZIF/S921BOXMHEZIF/S921BXXUHEZIF |
GTO | Guatemala | Oct 13, 2026 | +2 days | S921BXXUHEZIF/S921BOWOHEZIF/S921BXXUHEZIF |
ZTA | Brazil (Claro) | Oct 13, 2026 | +2 days | S921BXXUHEZIF/S921BOWOHEZIF/S921BXXUHEZIF |
ZTM | Brazil (TIM) | Oct 13, 2026 | +2 days | S921BXXUHEZIF/S921BOWOHEZIF/S921BXXUHEZIF |
ZTO | Brazil | Oct 13, 2026 | +2 days | S921BXXUHEZIF/S921BOWOHEZIF/S921BXXUHEZIF |
ZVV | Brazil (Vivo) | Oct 13, 2026 | +2 days | S921BXXUHEZIF/S921BOWOHEZIF/S921BXXUHEZIF |
BVO | Bolivia | Oct 15, 2026 | +4 days | S921BXXUHEZIF/S921BOWOHEZIF/S921BXXUHEZIF |
COB | Colombia (Movistar) | Oct 15, 2026 | +4 days | S921BXXUHEZIF/S921BOWOHEZIF/S921BXXUHEZIF |
COL | Colombia | Oct 15, 2026 | +4 days | S921BXXUHEZIF/S921BOWOHEZIF/S921BXXUHEZIF |
COO | Colombia | Oct 15, 2026 | +4 days | S921BXXUHEZIF/S921BOWOHEZIF/S921BXXUHEZIF |
TPA | Panama | Oct 15, 2026 | +4 days | S921BXXUHEZIF/S921BOWOHEZIF/S921BXXUHEZIF |
EBE | Ecuador | Oct 27, 2026 | +16 days | S921BXXUHEZIF/S921BOWOHEZIF/S921BXXUHEZIF |
ECO | Ecuador | Oct 27, 2026 | +16 days | S921BXXUHEZIF/S921BOWOHEZIF/S921BXXUHEZIF |
IUS | Mexico (AT&T) | Oct 27, 2026 | +16 days | S921BXXUHEZIF/S921BOWOHEZIF/S921BXXUHEZIF |
MXO | Mexico | Oct 27, 2026 | +16 days | S921BXXUHEZIF/S921BOWOHEZIF/S921BXXUHEZIF |
TCE | Mexico (Telcel) | Oct 27, 2026 | +16 days | S921BXXUHEZIF/S921BOWOHEZIF/S921BXXUHEZIF |
TMM | Myanmar | Oct 27, 2026 | +16 days | S921BXXUHEZIF/S921BOWOHEZIF/S921BXXUHEZIF |
ARO | Argentina | Oct 29, 2026 | +18 days | S921BXXUHEZIF/S921BOWOHEZIF/S921BXXUHEZIF |
CGU | Guatemala (Claro) | Oct 29, 2026 | +18 days | S921BXXUHEZIF/S921BOWOHEZIF/S921BXXUHEZIF |
CRC | Costa Rica | Oct 29, 2026 | +18 days | S921BXXUHEZIF/S921BOWOHEZIF/S921BXXUHEZIF |
CTI | Argentina (Claro) | Oct 29, 2026 | +18 days | S921BXXUHEZIF/S921BOWOHEZIF/S921BXXUHEZIF |
DOR | Dominican Republic | Oct 29, 2026 | +18 days | S921BXXUHEZIF/S921BOWOHEZIF/S921BXXUHEZIF |
GLO | Nigeria (Glo) | Oct 29, 2026 | +18 days | S921BXXUHEZIF/S921BOWOHEZIF/S921BXXUHEZIF |
PGU | Guatemala | Oct 29, 2026 | +18 days | S921BXXUHEZIF/S921BOWOHEZIF/S921BXXUHEZIF |
PSN | Argentina (Personal) | Oct 29, 2026 | +18 days | S921BXXUHEZIF/S921BOWOHEZIF/S921BXXUHEZIF |
UFN | Argentina (Movistar) | Oct 29, 2026 | +18 days | S921BXXUHEZIF/S921BOWOHEZIF/S921BXXUHEZIF |
TGP | Paraguay | Nov 4, 2026 | +24 days | S921BXXUHEZIF/S921BOWOHEZIF/S921BXXUHEZIF |
UPO | Uruguay | Nov 4, 2026 | +24 days | S921BXXUHEZIF/S921BOWOHEZIF/S921BXXUHEZIF |
CDR | Dominican Republic | Nov 5, 2026 | +25 days | S921BXXUHEZIF/S921BOWOHEZIF/S921BXXUHEZIF |
PEO | Peru | Nov 5, 2026 | +25 days | S921BXXUHEZIF/S921BOWOHEZIF/S921BXXUHEZIF |
PET | Peru (Movistar) | Nov 5, 2026 | +25 days | S921BXXUHEZIF/S921BOWOHEZIF/S921BXXUHEZIF |
PNT | Panama | Nov 5, 2026 | +25 days | S921BXXUHEZIF/S921BOWOHEZIF/S921BXXUHEZIF |
SAM | Oceania | Nov 5, 2026 | +25 days | S921BXXUHEZIF/S921BOWOHEZIF/S921BXXUHEZIF |
Download and release notes
samloader download -m SM-S921B -r EUX -v S921BXXUHEZIF/S921BOXMHEZIF/S921BXXUHEZIFSamsung's release notes and security patch level for this update: SM-S921B / EUX on doc.samsungmobile.com. What each part of the build number means: decode S921BXXUHEZIF.