A057FXXSDDZB3 – Galaxy A05s firmware

Build A057FXXSDDZB3 is a security update for the Galaxy A05s (SM-A057F) on Android 15 (One UI 7). It first appeared on Samsung's servers on Mar 4, 2026 (method) and has reached 37 regions so far. It raises the bootloader bit from 12 to 13: once installed, the device no longer accepts firmware with bit 12 or lower, so a downgrade to A057FXXUCDZB1 is blocked. Samsung still serves this file.

Model
SM-A057F
Android
Android 15
Type
Security
Bootloader bit
13
First released
Mar 4, 2026
Regions
37

Rollout timeline by region

The date each region code (CSC) first received A057FXXSDDZB3, counted from the first release.

CSCRegionReleasedRolloutVersion (PDA/CSC/MODEM)
XIDIndonesiaMar 4, 2026day 0A057FXXSDDZB3/A057FOLEDDZB3/A057FXXSDDZB2
THLThailandMar 4, 2026day 0A057FXXSDDZB3/A057FOLMDDZB3/A057FXXSDDZB2
XXVVietnamMar 4, 2026day 0A057FXXSDDZB3/A057FOLMDDZB3/A057FXXSDDZB2
VAUAustralia (Vodafone)Mar 8, 2026+4 daysA057FXXSDDZB3/A057FOLMDDZB3/A057FXXSDDZB2
XSAAustraliaMar 8, 2026+4 daysA057FXXSDDZB3/A057FOLMDDZB3/A057FXXSDDZB2
GLBPhilippines (Globe)Mar 8, 2026+4 daysA057FXXSDDZB3/A057FOLMDDZB3/A057FXXSDDZB2
MYMMyanmarMar 8, 2026+4 daysA057FXXSDDZB3/A057FOLMDDZB3/A057FXXSDDZB2
XMEMalaysiaMar 8, 2026+4 daysA057FXXSDDZB3/A057FOLMDDZB3/A057FXXSDDZB2
XNZNew ZealandMar 8, 2026+4 daysA057FXXSDDZB3/A057FOLMDDZB3/A057FXXSDDZB2
XSPSingaporeMar 8, 2026+4 daysA057FXXSDDZB3/A057FOLMDDZB3/A057FXXSDDZB2
XTCPhilippinesMar 8, 2026+4 daysA057FXXSDDZB3/A057FOLMDDZB3/A057FXXSDDZB2
CAUCaucasusMar 9, 2026+5 daysA057FXXSDDZB3/A057FOXEDDZB3/A057FXXSDDZB2
SKZKazakhstanMar 9, 2026+5 daysA057FXXSDDZB3/A057FOXEDDZB3/A057FXXSDDZB2
SERRussiaMar 9, 2026+5 daysA057FXXSDDZB3/A057FOXEDDZB3/A057FXXSDDZB2
ACRGhanaMar 10, 2026+6 daysA057FXXSDDZB3/A057FOJMDDZB3/A057FXXSDDZB2
AFGAfghanistanMar 10, 2026+6 daysA057FXXSDDZB3/A057FOJMDDZB3/A057FXXSDDZB2
AFRAfricaMar 10, 2026+6 daysA057FXXSDDZB3/A057FOJMDDZB3/A057FXXSDDZB2
DKRSenegalMar 10, 2026+6 daysA057FXXSDDZB3/A057FOJMDDZB3/A057FXXSDDZB2
ECTNigeriaMar 10, 2026+6 daysA057FXXSDDZB3/A057FOJMDDZB3/A057FXXSDDZB2
EGYEgyptMar 10, 2026+6 daysA057FXXSDDZB3/A057FOJMDDZB3/A057FXXSDDZB2
KSASaudi ArabiaMar 10, 2026+6 daysA057FXXSDDZB3/A057FOJMDDZB3/A057FXXSDDZB2
LYSLibyaMar 10, 2026+6 daysA057FXXSDDZB3/A057FOJMDDZB3/A057FXXSDDZB2
MIDMiddle EastMar 10, 2026+6 daysA057FXXSDDZB3/A057FOJMDDZB3/A057FXXSDDZB2
MWDMoroccoMar 10, 2026+6 daysA057FXXSDDZB3/A057FOJMDDZB3/A057FXXSDDZB2
PAKPakistanMar 10, 2026+6 daysA057FXXSDDZB3/A057FOJMDDZB3/A057FXXSDDZB2
PKDPakistanMar 10, 2026+6 daysA057FXXSDDZB3/A057FOJMDDZB3/A057FXXSDDZB2
TUNTunisiaMar 10, 2026+6 daysA057FXXSDDZB3/A057FOJMDDZB3/A057FXXSDDZB2
TURTurkeyMar 10, 2026+6 daysA057FXXSDDZB3/A057FOJMDDZB3/A057FXXSDDZB2
XFASouth AfricaMar 10, 2026+6 daysA057FXXSDDZB3/A057FOJMDDZB3/A057FXXSDDZB2
XFESouth AfricaMar 10, 2026+6 daysA057FXXSDDZB3/A057FOJMDDZB3/A057FXXSDDZB2
XFVSouth Africa (Vodacom)Mar 10, 2026+6 daysA057FXXSDDZB3/A057FOJMDDZB3/A057FXXSDDZB2
XSGUnited Arab EmiratesMar 10, 2026+6 daysA057FXXSDDZB3/A057FOJMDDZB3/A057FXXSDDZB2
ILOIsraelMar 11, 2026+7 daysA057FXXSDDZB3/A057FOJMDDZB3/A057FXXSDDZB2
BKDBangladeshMar 23, 2026+19 daysA057FXXSDDZB3/A057FODMDDZB3/A057FXXSDDZB2
INSIndiaMar 23, 2026+19 daysA057FXXSDDZB3/A057FODMDDZB3/A057FXXSDDZB2
NPBNepalMar 23, 2026+19 daysA057FXXSDDZB3/A057FODMDDZB3/A057FXXSDDZB2
SLKSri LankaMar 23, 2026+19 daysA057FXXSDDZB3/A057FODMDDZB3/A057FXXSDDZB2

Download and release notes

samloader download -m SM-A057F -r INS -v A057FXXSDDZB3/A057FODMDDZB3/A057FXXSDDZB2

Samsung's release notes and security patch level for this update: SM-A057F / INS on doc.samsungmobile.com. What each part of the build number means: decode A057FXXSDDZB3.