A3051XXS4CWA3 – Galaxy A40s firmware

Build A3051XXS4CWA3 is a security update for the Galaxy A40s (SM-A3051) on Android 11 (One UI 3). It first appeared on Samsung's servers on Feb 1, 2023 (method) and has reached 1 region so far. It keeps bootloader bit 4, so downgrading to the previous build A3051XXU4CVG2 is still possible. Samsung still serves this file.

Model
SM-A3051
Android
Android 11
Type
Security
Bootloader bit
4
First released
Feb 1, 2023
Regions
1

Rollout timeline by region

The date each region code (CSC) first received A3051XXS4CWA3, counted from the first release.

CSCRegionReleasedRolloutVersion (PDA/CSC/MODEM)
BRITaiwanFeb 1, 2023day 0A3051XXS4CWA3/A3051OLO4CVG1/A3051XXS4CWA1

Download and release notes

samloader download -m SM-A3051 -r BRI -v A3051XXS4CWA3/A3051OLO4CVG1/A3051XXS4CWA1

Samsung's release notes and security patch level for this update: SM-A3051 / BRI on doc.samsungmobile.com. What each part of the build number means: decode A3051XXS4CWA3.