A055FXXSGDZE1 – Galaxy A05 firmware

Build A055FXXSGDZE1 is a security update for the Galaxy A05 (SM-A055F) on Android 15 (One UI 7). It first appeared on Samsung's servers on May 26, 2026 (method) and has reached 12 regions so far. It raises the bootloader bit from 15 to 16: once installed, the device no longer accepts firmware with bit 15 or lower, so a downgrade to A055FXXSFDZD1 is blocked. Samsung still serves this file.

Model
SM-A055F
Android
Android 15
Type
Security
Bootloader bit
16
First released
May 26, 2026
Regions
12

Rollout timeline by region

The date each region code (CSC) first received A055FXXSGDZE1, counted from the first release.

CSCRegionReleasedRolloutVersion (PDA/CSC/MODEM)
THLThailandMay 26, 2026day 0A055FXXSGDZE1/A055FOLMGDZE1/A055FXXSGDZE1
XXVVietnamMay 26, 2026day 0A055FXXSGDZE1/A055FOLMGDZE1/A055FXXSGDZE1
GLBPhilippines (Globe)Jun 1, 2026+6 daysA055FXXSGDZE1/A055FOLMGDZE1/A055FXXSGDZE1
MYMMyanmarJun 1, 2026+6 daysA055FXXSGDZE1/A055FOLMGDZE1/A055FXXSGDZE1
XMEMalaysiaJun 1, 2026+6 daysA055FXXSGDZE1/A055FOLMGDZE1/A055FXXSGDZE1
XNZNew ZealandJun 1, 2026+6 daysA055FXXSGDZE1/A055FOLMGDZE1/A055FXXSGDZE1
XTCPhilippinesJun 1, 2026+6 daysA055FXXSGDZE1/A055FOLMGDZE1/A055FXXSGDZE1
BKDBangladeshJun 2, 2026+7 daysA055FXXSGDZE1/A055FODMGDZE1/A055FXXSGDZE1
INSIndiaJun 2, 2026+7 daysA055FXXSGDZE1/A055FODMGDZE1/A055FXXSGDZE1
NPBNepalJun 2, 2026+7 daysA055FXXSGDZE1/A055FODMGDZE1/A055FXXSGDZE1
SLKSri LankaJun 2, 2026+7 daysA055FXXSGDZE1/A055FODMGDZE1/A055FXXSGDZE1
XIDIndonesiaJun 7, 2026+12 daysA055FXXSGDZE1/A055FOLEGDZE1/A055FXXSGDZE1

Download and release notes

samloader download -m SM-A055F -r INS -v A055FXXSGDZE1/A055FODMGDZE1/A055FXXSGDZE1

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 A055FXXSGDZE1.