A576USQS4AZI2 – Galaxy A57 5G firmware
Build A576USQS4AZI2 is a security update for the Galaxy A57 5G (SM-A576U)
on Android 16 (One UI 8). It first appeared on Samsung's servers on Sep 16, 2026 (method) and has reached
2 regions so far. It keeps bootloader bit 4, so downgrading to the previous build A576USQS4AZI3 is still possible. Samsung still serves this file.
- Model
- SM-A576U
- Android
- Android 16
- Type
- Security
- Bootloader bit
- 4
- First released
- Sep 16, 2026
- Regions
- 2
Rollout timeline by region
The date each region code (CSC) first received A576USQS4AZI2, counted from the first release.
| CSC | Region | Released | Rollout | Version (PDA/CSC/MODEM) |
|---|---|---|---|---|
TMB | USA (T-Mobile) | Sep 16, 2026 | day 0 | A576USQS4AZI2/A576UOYN4AZI2/A576USQS4AZI2 |
TMK | USA (MetroPCS) | Sep 16, 2026 | day 0 | A576USQS4AZI2/A576UOYN4AZI2/A576USQS4AZI2 |
Download and release notes
samloader download -m SM-A576U -r TMB -v A576USQS4AZI2/A576UOYN4AZI2/A576USQS4AZI2Samsung's release notes and security patch level for this update: SM-A576U / TMB on doc.samsungmobile.com. What each part of the build number means: decode A576USQS4AZI2.