A576U1UES5AZH3 – Galaxy A57 5G firmware

Build A576U1UES5AZH3 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 Aug 26, 2026 (method) and has reached 12 regions so far. It raises the bootloader bit from 4 to 5: once installed, the device no longer accepts firmware with bit 4 or lower, so a downgrade to A576U1UES4AZG5 is blocked. Samsung still serves this file.

Model
SM-A576U1
Android
Android 16
Type
Security
Bootloader bit
5
First released
Aug 26, 2026
Regions
12

Rollout timeline by region

The date each region code (CSC) first received A576U1UES5AZH3, counted from the first release.

CSCRegionReleasedRolloutVersion (PDA/CSC/MODEM)
TMBUSA (T-Mobile)Aug 26, 2026day 0A576U1UES5AZH3/A576U1OYM5AZH3/A576U1UES5AZH3
TMKUSA (MetroPCS)Aug 26, 2026day 0A576U1UES5AZH3/A576U1OYM5AZH3/A576U1UES5AZH3
XAAUSA (unlocked)Aug 26, 2026day 0A576U1UES5AZH3/A576U1OYM5AZH3/A576U1UES5AZH3
XARUSA (Cellular South)Aug 26, 2026day 0A576U1UES5AZH3/A576U1OYM5AZH3/A576U1UES5AZH3
ACGUSA (C Spire)Aug 26, 2026day 0A576U1UES5AZH3/A576U1OYM5AZH3/A576U1UES5AZH3
AIOUSA (Cricket)Aug 26, 2026day 0A576U1UES5AZH3/A576U1OYM5AZH3/A576U1UES5AZH3
ATTUSA (AT&T)Aug 26, 2026day 0A576U1UES5AZH3/A576U1OYM5AZH3/A576U1UES5AZH3
CCTUSA (Comcast)Aug 26, 2026day 0A576U1UES5AZH3/A576U1OYM5AZH3/A576U1UES5AZH3
DSAUSAAug 26, 2026day 0A576U1UES5AZH3/A576U1OYM5AZH3/A576U1UES5AZH3
DSHUSAAug 26, 2026day 0A576U1UES5AZH3/A576U1OYM5AZH3/A576U1UES5AZH3
LRAUSA (Bluegrass)Aug 26, 2026day 0A576U1UES5AZH3/A576U1OYM5AZH3/A576U1UES5AZH3
VZWUSA (Verizon)Aug 26, 2026day 0A576U1UES5AZH3/A576U1OYM5AZH3/A576U1UES5AZH3

Download and release notes

samloader download -m SM-A576U1 -r XAA -v A576U1UES5AZH3/A576U1OYM5AZH3/A576U1UES5AZH3

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 A576U1UES5AZH3.