Samsung Galaxy A27 5G (SM-A276U1) Firmware Overview
What is the latest SM-A276U1 firmware?
A276U1UES3AZI3, released September 29, 2026 with Android 16. It is a security update on bootloader binary 3. The archive holds 20 official builds across 18 regions (CSC). Each one is the full stock ROM (flash file) for Odin, not an OTA patch.
Is the Samsung Galaxy A27 5G still getting updates?
Yes. The newest build is from September 2026, and 18 of 18 regions already have a build from that month; the rest usually follow within a few weeks.
Can I downgrade the SM-A276U1 firmware?
Only to builds with the same bootloader binary (the Bit column) or higher. In the archive the binary of this model rose from 2 to 3:
- Binary 3 — since Sep 2026
- Binary 2 — since Aug 2026
A phone already on binary 3 rejects builds with a lower binary in Odin ("SW REV CHECK FAIL"), so it can go back to an earlier Android version only if that version has a binary 3 build. How to read a build number.
All SM-A276U1 firmware builds
| Build / PDA | Bit | Region (CSC) | Android | Date | Download Link |
|---|---|---|---|---|---|
|
A276U1UES3AZI3
Security update
|
3 | ACG | 16 |
2026-09-29 | Download |
|
A276U1UES3AZI3
Security update
|
3 | AIO | 16 |
2026-09-29 | Download |
|
A276U1UES3AZI3
Security update
|
3 | ATC | 16 |
2026-09-29 | Download |
|
A276U1UES3AZI3
Security update
|
3 | ATT | 16 |
2026-09-29 | Download |
|
A276U1UES3AZI3
Security update
|
3 | CCT | 16 |
2026-09-29 | Download |
|
A276U1UES3AZI3
Security update
|
3 | CHA | 16 |
2026-09-29 | Download |
|
A276U1UES3AZI3
Security update
|
3 | DSA | 16 |
2026-09-29 | Download |
|
A276U1UES3AZI3
Security update
|
3 | DSG | 16 |
2026-09-29 | Download |
|
A276U1UES3AZI3
Security update
|
3 | DSH | 16 |
2026-09-29 | Download |
|
A276U1UES3AZI3
Security update
|
3 | FKR | 16 |
2026-09-29 | Download |
|
A276U1UES3AZI3
Security update
|
3 | LRA | 16 |
2026-09-29 | Download |
|
A276U1UES3AZI3
Security update
|
3 | TFV | 16 |
2026-09-29 | Download |
|
A276U1UES3AZI3
Security update
|
3 | TMB | 16 |
2026-09-29 | Download |
|
A276U1UES3AZI3
Security update
|
3 | TMK | 16 |
2026-09-29 | Download |
|
A276U1UES3AZI3
Security update
|
3 | VZW | 16 |
2026-09-29 | Download |
|
A276U1UES3AZI3
Security update
|
3 | XAA | 16 |
2026-09-29 | Download |
|
A276U1UES3AZI3
Security update
|
3 | XAG | 16 |
2026-09-29 | Download |
|
A276U1UES3AZI3
Security update
|
3 | XAR | 16 |
2026-09-29 | Download |
|
A276U1UEU2AZH3
Feature update
|
2 | AIO | 16 |
2026-08-26 | Download |
|
A276U1UEU2AZH3
Feature update
|
2 | CCT | 16 |
2026-08-26 | Download |
Latest SM-A276U1 Firmware by Region
The newest build for each region (CSC) code. Not sure which region your phone uses? See the CSC code guide.
| Region | Latest build | Bit | Android | Date |
|---|---|---|---|---|
| ACG | A276U1UES3AZI3 | 3 | 16 | 2026-09-29 |
| AIO | A276U1UES3AZI3 | 3 | 16 | 2026-09-29 |
| ATC | A276U1UES3AZI3 | 3 | 16 | 2026-09-29 |
| ATT | A276U1UES3AZI3 | 3 | 16 | 2026-09-29 |
| CCT | A276U1UES3AZI3 | 3 | 16 | 2026-09-29 |
| CHA | A276U1UES3AZI3 | 3 | 16 | 2026-09-29 |
| DSA | A276U1UES3AZI3 | 3 | 16 | 2026-09-29 |
| DSG | A276U1UES3AZI3 | 3 | 16 | 2026-09-29 |
| DSH | A276U1UES3AZI3 | 3 | 16 | 2026-09-29 |
| FKR | A276U1UES3AZI3 | 3 | 16 | 2026-09-29 |
| LRA | A276U1UES3AZI3 | 3 | 16 | 2026-09-29 |
| TFV | A276U1UES3AZI3 | 3 | 16 | 2026-09-29 |
| TMB | A276U1UES3AZI3 | 3 | 16 | 2026-09-29 |
| TMK | A276U1UES3AZI3 | 3 | 16 | 2026-09-29 |
| VZW | A276U1UES3AZI3 | 3 | 16 | 2026-09-29 |
| XAA | A276U1UES3AZI3 | 3 | 16 | 2026-09-29 |
| XAG | A276U1UES3AZI3 | 3 | 16 | 2026-09-29 |
| XAR | A276U1UES3AZI3 | 3 | 16 | 2026-09-29 |
How to Flash SM-A276U1 Firmware
Put the Samsung Galaxy A27 5G into Download Mode, load the BL, AP, CP and CSC files into Odin on a Windows PC and press Start. Pick a build with Bit 3 or higher if your phone is already on the latest firmware. Use HOME_CSC to keep your data, CSC for a full wipe.