A576U1UEU6BZJ4 – Galaxy A57 5G firmware

Build A576U1UEU6BZJ4 is a feature update for the Galaxy A57 5G (SM-A576U1) on Android 17 (One UI 9). It first appeared on Samsung's servers on Nov 12, 2026 (method) and has reached 11 regions so far. It keeps bootloader bit 6, so downgrading to the previous build A576U1UES6BZJ2 is still possible. Samsung still serves this file.

Model
SM-A576U1
Android
Android 17
Type
Feature
Bootloader bit
6
First released
Nov 12, 2026
Regions
11

Rollout timeline by region

The date each region code (CSC) first received A576U1UEU6BZJ4, counted from the first release.

CSCRegionReleasedRolloutVersion (PDA/CSC/MODEM)
ACGUSA (C Spire)Nov 12, 2026day 0A576U1UEU6BZJ4/A576U1OYM6BZJ4/A576U1UEU6BZJ4
AIOUSA (Cricket)Nov 12, 2026day 0A576U1UEU6BZJ4/A576U1OYM6BZJ4/A576U1UEU6BZJ4
CCTUSA (Comcast)Nov 12, 2026day 0A576U1UEU6BZJ4/A576U1OYM6BZJ4/A576U1UEU6BZJ4
DSAUSANov 12, 2026day 0A576U1UEU6BZJ4/A576U1OYM6BZJ4/A576U1UEU6BZJ4
DSHUSANov 12, 2026day 0A576U1UEU6BZJ4/A576U1OYM6BZJ4/A576U1UEU6BZJ4
LRAUSA (Bluegrass)Nov 12, 2026day 0A576U1UEU6BZJ4/A576U1OYM6BZJ4/A576U1UEU6BZJ4
TMBUSA (T-Mobile)Nov 12, 2026day 0A576U1UEU6BZJ4/A576U1OYM6BZJ4/A576U1UEU6BZJ4
TMKUSA (MetroPCS)Nov 12, 2026day 0A576U1UEU6BZJ4/A576U1OYM6BZJ4/A576U1UEU6BZJ4
VZWUSA (Verizon)Nov 12, 2026day 0A576U1UEU6BZJ4/A576U1OYM6BZJ4/A576U1UEU6BZJ4
XAAUSA (unlocked)Nov 12, 2026day 0A576U1UEU6BZJ4/A576U1OYM6BZJ4/A576U1UEU6BZJ4
XARUSA (Cellular South)Nov 12, 2026day 0A576U1UEU6BZJ4/A576U1OYM6BZJ4/A576U1UEU6BZJ4

Download and release notes

samloader download -m SM-A576U1 -r XAA -v A576U1UEU6BZJ4/A576U1OYM6BZJ4/A576U1UEU6BZJ4

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 A576U1UEU6BZJ4.