A576U1UES4AZG5 – Galaxy A57 5G firmware

Build A576U1UES4AZG5 is a security update for the Galaxy A57 5G (SM-A576U1) on Android 16 (One UI 8). It first appeared on Samsung's servers on Jul 30, 2026 (method) and has reached 12 regions so far. It raises the bootloader bit from 3 to 4: once installed, the device no longer accepts firmware with bit 3 or lower, so a downgrade to A576U1UES3AZF4 is blocked. Samsung still serves this file.

Model
SM-A576U1
Android
Android 16
Type
Security
Bootloader bit
4
First released
Jul 30, 2026
Regions
12

Rollout timeline by region

The date each region code (CSC) first received A576U1UES4AZG5, counted from the first release.

CSCRegionReleasedRolloutVersion (PDA/CSC/MODEM)
TMBUSA (T-Mobile)Jul 30, 2026day 0A576U1UES4AZG5/A576U1OYM4AZG5/A576U1UES4AZG5
TMKUSA (MetroPCS)Jul 30, 2026day 0A576U1UES4AZG5/A576U1OYM4AZG5/A576U1UES4AZG5
DSHUSAJul 30, 2026day 0A576U1UES4AZG5/A576U1OYM4AZG5/A576U1UES4AZG5
LRAUSA (Bluegrass)Jul 30, 2026day 0A576U1UES4AZG5/A576U1OYM4AZG5/A576U1UES4AZG5
VZWUSA (Verizon)Jul 30, 2026day 0A576U1UES4AZG5/A576U1OYM4AZG5/A576U1UES4AZG5
XAAUSA (unlocked)Jul 30, 2026day 0A576U1UES4AZG5/A576U1OYM4AZG5/A576U1UES4AZG5
XARUSA (Cellular South)Jul 30, 2026day 0A576U1UES4AZG5/A576U1OYM4AZG5/A576U1UES4AZG5
ACGUSA (C Spire)Jul 30, 2026day 0A576U1UES4AZG5/A576U1OYM4AZG5/A576U1UES4AZG5
AIOUSA (Cricket)Jul 30, 2026day 0A576U1UES4AZG5/A576U1OYM4AZG5/A576U1UES4AZG5
ATTUSA (AT&T)Jul 30, 2026day 0A576U1UES4AZG5/A576U1OYM4AZG5/A576U1UES4AZG5
CCTUSA (Comcast)Jul 30, 2026day 0A576U1UES4AZG5/A576U1OYM4AZG5/A576U1UES4AZG5
DSAUSAJul 30, 2026day 0A576U1UES4AZG5/A576U1OYM4AZG5/A576U1UES4AZG5

Download and release notes

samloader download -m SM-A576U1 -r XAA -v A576U1UES4AZG5/A576U1OYM4AZG5/A576U1UES4AZG5

Samsung's release notes and security patch level for this update: SM-A576U1 / XAA on doc.samsungmobile.com. What each part of the build number means: decode A576U1UES4AZG5.