A055FXXSIDZI3 – Galaxy A05 firmware

Build A055FXXSIDZI3 is a security update for the Galaxy A05 (SM-A055F) on Android 15 (One UI 7). It first appeared on Samsung's servers on Oct 12, 2026 (method) and has reached 35 regions so far. It raises the bootloader bit from 17 to 18: once installed, the device no longer accepts firmware with bit 17 or lower, so a downgrade to A055FXXSHDZF1 is blocked. Samsung still serves this file.

Model
SM-A055F
Android
Android 15
Type
Security
Bootloader bit
18
First released
Oct 12, 2026
Regions
35

Rollout timeline by region

The date each region code (CSC) first received A055FXXSIDZI3, counted from the first release.

CSCRegionReleasedRolloutVersion (PDA/CSC/MODEM)
THLThailandOct 12, 2026day 0A055FXXSIDZI3/A055FOLMIDZI3/A055FXXSIDZI3
XXVVietnamOct 12, 2026day 0A055FXXSIDZI3/A055FOLMIDZI3/A055FXXSIDZI3
BKDBangladeshOct 20, 2026+8 daysA055FXXSIDZI3/A055FODMIDZI3/A055FXXSIDZI3
INSIndiaOct 20, 2026+8 daysA055FXXSIDZI3/A055FODMIDZI3/A055FXXSIDZI3
NPBNepalOct 20, 2026+8 daysA055FXXSIDZI3/A055FODMIDZI3/A055FXXSIDZI3
SLKSri LankaOct 20, 2026+8 daysA055FXXSIDZI3/A055FODMIDZI3/A055FXXSIDZI3
ACRGhanaOct 25, 2026+13 daysA055FXXSIDZI3/A055FOJMIDZI3/A055FXXSIDZI3
AFGAfghanistanOct 25, 2026+13 daysA055FXXSIDZI3/A055FOJMIDZI3/A055FXXSIDZI3
AFRAfricaOct 25, 2026+13 daysA055FXXSIDZI3/A055FOJMIDZI3/A055FXXSIDZI3
DKRSenegalOct 25, 2026+13 daysA055FXXSIDZI3/A055FOJMIDZI3/A055FXXSIDZI3
ECTNigeriaOct 25, 2026+13 daysA055FXXSIDZI3/A055FOJMIDZI3/A055FXXSIDZI3
EGYEgyptOct 25, 2026+13 daysA055FXXSIDZI3/A055FOJMIDZI3/A055FXXSIDZI3
KSASaudi ArabiaOct 25, 2026+13 daysA055FXXSIDZI3/A055FOJMIDZI3/A055FXXSIDZI3
LYSLibyaOct 25, 2026+13 daysA055FXXSIDZI3/A055FOJMIDZI3/A055FXXSIDZI3
MIDMiddle EastOct 25, 2026+13 daysA055FXXSIDZI3/A055FOJMIDZI3/A055FXXSIDZI3
MWDMoroccoOct 25, 2026+13 daysA055FXXSIDZI3/A055FOJMIDZI3/A055FXXSIDZI3
PAKPakistanOct 25, 2026+13 daysA055FXXSIDZI3/A055FOJMIDZI3/A055FXXSIDZI3
PKDPakistanOct 25, 2026+13 daysA055FXXSIDZI3/A055FOJMIDZI3/A055FXXSIDZI3
TUNTunisiaOct 25, 2026+13 daysA055FXXSIDZI3/A055FOJMIDZI3/A055FXXSIDZI3
TURTurkeyOct 25, 2026+13 daysA055FXXSIDZI3/A055FOJMIDZI3/A055FXXSIDZI3
XFASouth AfricaOct 25, 2026+13 daysA055FXXSIDZI3/A055FOJMIDZI3/A055FXXSIDZI3
XFESouth AfricaOct 25, 2026+13 daysA055FXXSIDZI3/A055FOJMIDZI3/A055FXXSIDZI3
XFVSouth Africa (Vodacom)Oct 25, 2026+13 daysA055FXXSIDZI3/A055FOJMIDZI3/A055FXXSIDZI3
XSGUnited Arab EmiratesOct 25, 2026+13 daysA055FXXSIDZI3/A055FOJMIDZI3/A055FXXSIDZI3
XIDIndonesiaOct 25, 2026+13 daysA055FXXSIDZI3/A055FOLEIDZI3/A055FXXSIDZI3
GLBPhilippines (Globe)Oct 25, 2026+13 daysA055FXXSIDZI3/A055FOLMIDZI3/A055FXXSIDZI3
MYMMyanmarOct 25, 2026+13 daysA055FXXSIDZI3/A055FOLMIDZI3/A055FXXSIDZI3
XMEMalaysiaOct 25, 2026+13 daysA055FXXSIDZI3/A055FOLMIDZI3/A055FXXSIDZI3
XTCPhilippinesOct 25, 2026+13 daysA055FXXSIDZI3/A055FOLMIDZI3/A055FXXSIDZI3
CAUCaucasusOct 25, 2026+13 daysA055FXXSIDZI3/A055FOXMIDZI3/A055FXXSIDZI3
SEKUkraineOct 25, 2026+13 daysA055FXXSIDZI3/A055FOXMIDZI3/A055FXXSIDZI3
SERRussiaOct 25, 2026+13 daysA055FXXSIDZI3/A055FOXMIDZI3/A055FXXSIDZI3
SKZKazakhstanOct 25, 2026+13 daysA055FXXSIDZI3/A055FOXMIDZI3/A055FXXSIDZI3
XNZNew ZealandOct 26, 2026+14 daysA055FXXSIDZI3/A055FOLMIDZI3/A055FXXSIDZI3
ILOIsraelOct 27, 2026+15 daysA055FXXSIDZI3/A055FOJMIDZI3/A055FXXSIDZI3

Download and release notes

samloader download -m SM-A055F -r INS -v A055FXXSIDZI3/A055FODMIDZI3/A055FXXSIDZI3

Samsung's release notes and security patch level for this update: SM-A055F / INS on doc.samsungmobile.com. What each part of the build number means: decode A055FXXSIDZI3.