A576USQS4BZJ2 – Galaxy A57 5G firmware
Build A576USQS4BZJ2 is a security update for the Galaxy A57 5G (SM-A576U)
on Android 17 (One UI 9). It first appeared on Samsung's servers on Oct 26, 2026 (method) and has reached
5 regions so far. It keeps bootloader bit 4, so downgrading to the previous build A576USQU4BZIE is still possible. Samsung still serves this file.
- Model
- SM-A576U
- Android
- Android 17
- Type
- Security
- Bootloader bit
- 4
- First released
- Oct 26, 2026
- Regions
- 5
Rollout timeline by region
The date each region code (CSC) first received A576USQS4BZJ2, counted from the first release.
| CSC | Region | Released | Rollout | Version (PDA/CSC/MODEM) |
|---|---|---|---|---|
CCT | USA (Comcast) | Oct 26, 2026 | day 0 | A576USQS4BZJ2/A576UOYN4BZJ2/A576USQS4BZJ2 |
TMB | USA (T-Mobile) | Oct 26, 2026 | day 0 | A576USQS4BZJ2/A576UOYN4BZJ2/A576USQS4BZJ2 |
TMK | USA (MetroPCS) | Oct 26, 2026 | day 0 | A576USQS4BZJ2/A576UOYN4BZJ2/A576USQS4BZJ2 |
AIO | USA (Cricket) | Oct 27, 2026 | +1 day | A576USQS4BZJ2/A576UOYN4BZJ2/A576USQS4BZJ2 |
ATT | USA (AT&T) | Oct 27, 2026 | +1 day | A576USQS4BZJ2/A576UOYN4BZJ2/A576USQS4BZJ2 |
Download and release notes
samloader download -m SM-A576U -r CCT -v A576USQS4BZJ2/A576UOYN4BZJ2/A576USQS4BZJ2Samsung's release notes and security patch level for this update: SM-A576U / CCT on doc.samsungmobile.com. What each part of the build number means: decode A576USQS4BZJ2.