Galaxy S25 FE

SM-S731B

Firmware S731BXXU9CZIF

Vietnam · XXVAndroid 17Built Sep 19, 2026

Release information

Firmware identifiers

The software versions and region covered by this firmware update.

Vietnam · CSC XXV · 9 carriers in 1 country

What is CSC?

CSC is Samsung's region and carrier customization. The networks below are included in this release.

EVNTelecom

MCCMNC45206NWIDNW02343

EVN Telecom

CDMA2000 450

GmobileMVNO

MCCMNC45207NWIDNW00539

GTEL Mobile JSC

I-TelecomMVNO

MCCMNC45208NWIDNW02262

Indochina Telecom

MobiFone

MCCMNC45201NWIDNW01450

Vietnam Mobile Telecom Services Company

5G 3800LTE 900LTE 1800UMTS 900UMTS 2100

Vietnamobile

MCCMNC45205NWIDNW01470

Hanoi Telecom

UMTS 2100

Viettel Mobile

MCCMNC45204NWIDNW01431

Viettel Telecom

5G 2500LTE 900LTE 1800UMTS 900UMTS 2100

Vinaphone

MCCMNC45202NWIDNW01471

Vietnam Telecom Services Company

5G 3700LTE 900UMTS 900UMTS 2100

WintelMVNO

MCCMNC45209NWIDNW02010

Mobicast JSC

pottel

MCCMNC45210NWIDNW02519