S731BXXS8BZG1 – Galaxy S25 FE firmware
Build S731BXXS8BZG1 is a security update for the Galaxy S25 FE (SM-S731B)
on Android 16 (One UI 8). It first appeared on Samsung's servers on Jul 19, 2026 (method) and has reached
82 regions so far. It raises the bootloader bit from 7 to 8: once installed, the device no longer accepts firmware with bit 7 or lower, so a downgrade to S731BXXS7BZF3 is blocked. Samsung still serves this file.
- Model
- SM-S731B
- Android
- Android 16
- Type
- Security
- Bootloader bit
- 8
- First released
- Jul 19, 2026
- Regions
- 82
Rollout timeline by region
The date each region code (CSC) first received S731BXXS8BZG1, counted from the first release.
| CSC | Region | Released | Rollout | Version (PDA/CSC/MODEM) |
|---|---|---|---|---|
BOG | France (Bouygues) | Jul 19, 2026 | day 0 | S731BXXS8BZG1/S731BOXM8BZG1/S731BXXS8BZG1 |
EUX | Europe (Multi-CSC) | Jul 19, 2026 | day 0 | S731BXXS8BZG1/S731BOXM8BZG1/S731BXXS8BZG1 |
EUY | Europe (Multi-CSC) | Jul 19, 2026 | day 0 | S731BXXS8BZG1/S731BOXM8BZG1/S731BXXS8BZG1 |
MOB | Austria (A1) | Jul 19, 2026 | day 0 | S731BXXS8BZG1/S731BOXM8BZG1/S731BXXS8BZG1 |
PLS | Poland (Plus) | Jul 19, 2026 | day 0 | S731BXXS8BZG1/S731BOXM8BZG1/S731BXXS8BZG1 |
PRT | Poland (Play) | Jul 19, 2026 | day 0 | S731BXXS8BZG1/S731BOXM8BZG1/S731BXXS8BZG1 |
SFR | France (SFR) | Jul 19, 2026 | day 0 | S731BXXS8BZG1/S731BOXM8BZG1/S731BXXS8BZG1 |
SIM | Slovenia (A1) | Jul 19, 2026 | day 0 | S731BXXS8BZG1/S731BOXM8BZG1/S731BXXS8BZG1 |
SWC | Switzerland | Jul 19, 2026 | day 0 | S731BXXS8BZG1/S731BOXM8BZG1/S731BXXS8BZG1 |
TUR | Turkey | Jul 19, 2026 | day 0 | S731BXXS8BZG1/S731BOXM8BZG1/S731BXXS8BZG1 |
ACR | Ghana | Jul 20, 2026 | +1 day | S731BXXS8BZG1/S731BOXM8BZG1/S731BXXS8BZG1 |
AFG | Afghanistan | Jul 20, 2026 | +1 day | S731BXXS8BZG1/S731BOXM8BZG1/S731BXXS8BZG1 |
AFR | Africa | Jul 20, 2026 | +1 day | S731BXXS8BZG1/S731BOXM8BZG1/S731BXXS8BZG1 |
DKR | Senegal | Jul 20, 2026 | +1 day | S731BXXS8BZG1/S731BOXM8BZG1/S731BXXS8BZG1 |
ECT | Nigeria | Jul 20, 2026 | +1 day | S731BXXS8BZG1/S731BOXM8BZG1/S731BXXS8BZG1 |
EGY | Egypt | Jul 20, 2026 | +1 day | S731BXXS8BZG1/S731BOXM8BZG1/S731BXXS8BZG1 |
KSA | Saudi Arabia | Jul 20, 2026 | +1 day | S731BXXS8BZG1/S731BOXM8BZG1/S731BXXS8BZG1 |
LYS | Libya | Jul 20, 2026 | +1 day | S731BXXS8BZG1/S731BOXM8BZG1/S731BXXS8BZG1 |
MID | Middle East | Jul 20, 2026 | +1 day | S731BXXS8BZG1/S731BOXM8BZG1/S731BXXS8BZG1 |
MWD | Morocco | Jul 20, 2026 | +1 day | S731BXXS8BZG1/S731BOXM8BZG1/S731BXXS8BZG1 |
PAK | Pakistan | Jul 20, 2026 | +1 day | S731BXXS8BZG1/S731BOXM8BZG1/S731BXXS8BZG1 |
PKD | Pakistan | Jul 20, 2026 | +1 day | S731BXXS8BZG1/S731BOXM8BZG1/S731BXXS8BZG1 |
TUN | Tunisia | Jul 20, 2026 | +1 day | S731BXXS8BZG1/S731BOXM8BZG1/S731BXXS8BZG1 |
XFA | South Africa | Jul 20, 2026 | +1 day | S731BXXS8BZG1/S731BOXM8BZG1/S731BXXS8BZG1 |
XFV | South Africa (Vodacom) | Jul 20, 2026 | +1 day | S731BXXS8BZG1/S731BOXM8BZG1/S731BXXS8BZG1 |
XSG | United Arab Emirates | Jul 20, 2026 | +1 day | S731BXXS8BZG1/S731BOXM8BZG1/S731BXXS8BZG1 |
BRI | Taiwan | Jul 21, 2026 | +2 days | S731BXXS8BZG1/S731BOXM8BZG1/S731BXXS8BZG1 |
CAU | Caucasus | Jul 21, 2026 | +2 days | S731BXXS8BZG1/S731BOXM8BZG1/S731BXXS8BZG1 |
GLB | Philippines (Globe) | Jul 21, 2026 | +2 days | S731BXXS8BZG1/S731BOXM8BZG1/S731BXXS8BZG1 |
MM1 | Singapore (M1) | Jul 21, 2026 | +2 days | S731BXXS8BZG1/S731BOXM8BZG1/S731BXXS8BZG1 |
SER | Russia | Jul 21, 2026 | +2 days | S731BXXS8BZG1/S731BOXM8BZG1/S731BXXS8BZG1 |
SIN | Singapore (Singtel) | Jul 21, 2026 | +2 days | S731BXXS8BZG1/S731BOXM8BZG1/S731BXXS8BZG1 |
SKZ | Kazakhstan | Jul 21, 2026 | +2 days | S731BXXS8BZG1/S731BOXM8BZG1/S731BXXS8BZG1 |
STH | Singapore (StarHub) | Jul 21, 2026 | +2 days | S731BXXS8BZG1/S731BOXM8BZG1/S731BXXS8BZG1 |
THL | Thailand | Jul 21, 2026 | +2 days | S731BXXS8BZG1/S731BOXM8BZG1/S731BXXS8BZG1 |
XID | Indonesia | Jul 21, 2026 | +2 days | S731BXXS8BZG1/S731BOXM8BZG1/S731BXXS8BZG1 |
XME | Malaysia | Jul 21, 2026 | +2 days | S731BXXS8BZG1/S731BOXM8BZG1/S731BXXS8BZG1 |
XNZ | New Zealand | Jul 21, 2026 | +2 days | S731BXXS8BZG1/S731BOXM8BZG1/S731BXXS8BZG1 |
XSA | Australia | Jul 21, 2026 | +2 days | S731BXXS8BZG1/S731BOXM8BZG1/S731BXXS8BZG1 |
XSP | Singapore | Jul 21, 2026 | +2 days | S731BXXS8BZG1/S731BOXM8BZG1/S731BXXS8BZG1 |
XTC | Philippines | Jul 21, 2026 | +2 days | S731BXXS8BZG1/S731BOXM8BZG1/S731BXXS8BZG1 |
XXV | Vietnam | Jul 21, 2026 | +2 days | S731BXXS8BZG1/S731BOXM8BZG1/S731BXXS8BZG1 |
ILO | Israel | Jul 21, 2026 | +2 days | S731BXXS8BZG1/S731BOXM8BZG1/S731BXXS8BZG1 |
ARO | Argentina | Jul 27, 2026 | +8 days | S731BXXS8BZG1/S731BOWO8BZG1/S731BXXS8BZG1 |
BVO | Bolivia | Jul 27, 2026 | +8 days | S731BXXS8BZG1/S731BOWO8BZG1/S731BXXS8BZG1 |
CDR | Dominican Republic | Jul 27, 2026 | +8 days | S731BXXS8BZG1/S731BOWO8BZG1/S731BXXS8BZG1 |
CGU | Guatemala (Claro) | Jul 27, 2026 | +8 days | S731BXXS8BZG1/S731BOWO8BZG1/S731BXXS8BZG1 |
CHE | Chile (Entel) | Jul 27, 2026 | +8 days | S731BXXS8BZG1/S731BOWO8BZG1/S731BXXS8BZG1 |
CHL | Chile (Claro) | Jul 27, 2026 | +8 days | S731BXXS8BZG1/S731BOWO8BZG1/S731BXXS8BZG1 |
CHO | Chile | Jul 27, 2026 | +8 days | S731BXXS8BZG1/S731BOWO8BZG1/S731BXXS8BZG1 |
CHT | Chile (Movistar) | Jul 27, 2026 | +8 days | S731BXXS8BZG1/S731BOWO8BZG1/S731BXXS8BZG1 |
COB | Colombia (Movistar) | Jul 27, 2026 | +8 days | S731BXXS8BZG1/S731BOWO8BZG1/S731BXXS8BZG1 |
COL | Colombia | Jul 27, 2026 | +8 days | S731BXXS8BZG1/S731BOWO8BZG1/S731BXXS8BZG1 |
COM | Colombia (Claro) | Jul 27, 2026 | +8 days | S731BXXS8BZG1/S731BOWO8BZG1/S731BXXS8BZG1 |
COO | Colombia | Jul 27, 2026 | +8 days | S731BXXS8BZG1/S731BOWO8BZG1/S731BXXS8BZG1 |
CRC | Costa Rica | Jul 27, 2026 | +8 days | S731BXXS8BZG1/S731BOWO8BZG1/S731BXXS8BZG1 |
CTI | Argentina (Claro) | Jul 27, 2026 | +8 days | S731BXXS8BZG1/S731BOWO8BZG1/S731BXXS8BZG1 |
DOR | Dominican Republic | Jul 27, 2026 | +8 days | S731BXXS8BZG1/S731BOWO8BZG1/S731BXXS8BZG1 |
EBE | Ecuador | Jul 27, 2026 | +8 days | S731BXXS8BZG1/S731BOWO8BZG1/S731BXXS8BZG1 |
ECO | Ecuador | Jul 27, 2026 | +8 days | S731BXXS8BZG1/S731BOWO8BZG1/S731BXXS8BZG1 |
GLO | Nigeria (Glo) | Jul 27, 2026 | +8 days | S731BXXS8BZG1/S731BOWO8BZG1/S731BXXS8BZG1 |
GTO | Guatemala | Jul 27, 2026 | +8 days | S731BXXS8BZG1/S731BOWO8BZG1/S731BXXS8BZG1 |
IUS | Mexico (AT&T) | Jul 27, 2026 | +8 days | S731BXXS8BZG1/S731BOWO8BZG1/S731BXXS8BZG1 |
MXO | Mexico | Jul 27, 2026 | +8 days | S731BXXS8BZG1/S731BOWO8BZG1/S731BXXS8BZG1 |
PEO | Peru | Jul 27, 2026 | +8 days | S731BXXS8BZG1/S731BOWO8BZG1/S731BXXS8BZG1 |
PET | Peru (Movistar) | Jul 27, 2026 | +8 days | S731BXXS8BZG1/S731BOWO8BZG1/S731BXXS8BZG1 |
PGU | Guatemala | Jul 27, 2026 | +8 days | S731BXXS8BZG1/S731BOWO8BZG1/S731BXXS8BZG1 |
PNT | Panama | Jul 27, 2026 | +8 days | S731BXXS8BZG1/S731BOWO8BZG1/S731BXXS8BZG1 |
PSN | Argentina (Personal) | Jul 27, 2026 | +8 days | S731BXXS8BZG1/S731BOWO8BZG1/S731BXXS8BZG1 |
SAM | Oceania | Jul 27, 2026 | +8 days | S731BXXS8BZG1/S731BOWO8BZG1/S731BXXS8BZG1 |
TCE | Mexico (Telcel) | Jul 27, 2026 | +8 days | S731BXXS8BZG1/S731BOWO8BZG1/S731BXXS8BZG1 |
UFN | Argentina (Movistar) | Jul 27, 2026 | +8 days | S731BXXS8BZG1/S731BOWO8BZG1/S731BXXS8BZG1 |
UPO | Uruguay | Jul 27, 2026 | +8 days | S731BXXS8BZG1/S731BOWO8BZG1/S731BXXS8BZG1 |
UYO | Uruguay | Jul 27, 2026 | +8 days | S731BXXS8BZG1/S731BOWO8BZG1/S731BXXS8BZG1 |
ZTA | Brazil (Claro) | Jul 27, 2026 | +8 days | S731BXXS8BZG1/S731BOWO8BZG1/S731BXXS8BZG1 |
ZTM | Brazil (TIM) | Jul 27, 2026 | +8 days | S731BXXS8BZG1/S731BOWO8BZG1/S731BXXS8BZG1 |
ZTO | Brazil | Jul 27, 2026 | +8 days | S731BXXS8BZG1/S731BOWO8BZG1/S731BXXS8BZG1 |
ZVV | Brazil (Vivo) | Jul 27, 2026 | +8 days | S731BXXS8BZG1/S731BOWO8BZG1/S731BXXS8BZG1 |
BKD | Bangladesh | Jul 28, 2026 | +9 days | S731BXXS8BZG1/S731BOXM8BZG1/S731BXXS8BZG1 |
INS | India | Jul 28, 2026 | +9 days | S731BXXS8BZG1/S731BOXM8BZG1/S731BXXS8BZG1 |
NPB | Nepal | Jul 28, 2026 | +9 days | S731BXXS8BZG1/S731BOXM8BZG1/S731BXXS8BZG1 |
SLK | Sri Lanka | Jul 28, 2026 | +9 days | S731BXXS8BZG1/S731BOXM8BZG1/S731BXXS8BZG1 |
Download and release notes
samloader download -m SM-S731B -r EUX -v S731BXXS8BZG1/S731BOXM8BZG1/S731BXXS8BZG1Samsung's release notes and security patch level for this update: SM-S731B / EUX on doc.samsungmobile.com. What each part of the build number means: decode S731BXXS8BZG1.