A315FXXU4DWH4 – Galaxy A31 firmware

Build A315FXXU4DWH4 is a feature update for the Galaxy A31 (SM-A315F) on Android 12 (One UI 4). It first appeared on Samsung's servers on Aug 24, 2023 (method) and has reached 2 regions so far. It keeps bootloader bit 4, so downgrading to the previous build A315FXXS4DWH1 is still possible. Samsung still serves this file.

Model
SM-A315F
Android
Android 12
Type
Feature
Bootloader bit
4
First released
Aug 24, 2023
Regions
2

Rollout timeline by region

The date each region code (CSC) first received A315FXXU4DWH4, counted from the first release.

CSCRegionReleasedRolloutVersion (PDA/CSC/MODEM)
INSIndiaAug 24, 2023day 0A315FXXU4DWH4/A315FODM4DWH4/A315FXXU4DWH2
BKDBangladeshAug 27, 2023+3 daysA315FXXU4DWH4/A315FODM4DWH4/A315FXXU4DWH2

Download and release notes

samloader download -m SM-A315F -r INS -v A315FXXU4DWH4/A315FODM4DWH4/A315FXXU4DWH2

Samsung's release notes and security patch level for this update: SM-A315F / INS on doc.samsungmobile.com. What each part of the build number means: decode A315FXXU4DWH4.