SM-S731B Firmware

Latest firmware

PDAS731BXXS9BZH1

IUSAndroid 16Released 8/14/2026

Firmware details

Technical package info

Key identifiers and package metadata for this release.

PDA: S731BXXS9BZH1
CSC: S731BOWO9BZH1
Country: Mexico
Changelist: 33419270
Upload date: 9/1/2026
Package size: 21.0 GB (22533484035 bytes)
File name: IUS-S731BXXS9BZH1-20260818022441.zip

Networks supported by this firmware

MexicoCSC code IUS4 carriers in 1 country

What is CSC?

CSC stands for Consumer Software Customization (sometimes "Country Sales Code"). Samsung firmware ships with carrier- and region-specific configs; the networks listed below are what this CSC was built to support out of the box.

AT&T

MCCMNC334090NWIDNW00855

AT&T Mexico

LTE 850LTE 1700UMTS 1700

AT&T / Unefon

MCCMNC334050NWIDNW00614

AT&T Mexico