Samsung SM-T540 Firmware Overview
What is the latest SM-T540 firmware?
T540XXU4CYI1, released September 29, 2025 with Android 11. It is a feature update on bootloader binary 4. The archive holds 20 official builds across 19 regions (CSC). Each one is the full stock ROM (flash file) for Odin, not an OTA patch.
Is the Samsung SM-T540 still getting updates?
Most likely not: there has been no new firmware since September 2025, so Android 11 is the last version this model got. The final builds below are still the best choice for a clean reinstall.
Can I downgrade the SM-T540 firmware?
Only to builds with the same bootloader binary (the Bit column) or higher. All decodable builds in the archive share binary 4:
- Binary 4 — since Oct 2023
All SM-T540 firmware builds
| Build / PDA | Bit | Region (CSC) | Android | Date | Download Link |
|---|---|---|---|---|---|
|
T540XXU4CYI1
Feature update
|
4 | XJP | 11 |
2025-09-29 | Download |
|
T540XXS4CWJ2
Security update
|
4 | GTO | 11 |
2023-11-19 | Download |
|
T540XXS4CWJ2
Security update
|
4 | MXO | 11 |
2023-11-17 | Download |
|
T540XXS4CWJ1
Security update
|
4 | XAR | 11 |
2023-11-16 | Download |
|
T540XXS4CWJ1
Security update
|
4 | XSA | 11 |
2023-11-16 | Download |
|
T540XXS4CWJ1
Security update
|
4 | PHE | 11 |
2023-11-16 | Download |
|
T540XXS4CWJ1
Security update
|
4 | AUT | 11 |
2023-11-16 | Download |
|
T540XXS4CWJ1
Security update
|
4 | XNZ | 11 |
2023-11-16 | Download |
|
T540XXS4CWJ1
Security update
|
4 | XSK | 11 |
2023-11-16 | Download |
|
T540XXS4CWJ1
Security update
|
4 | TPH | 11 |
2023-11-16 | Download |
|
T540XXS4CWJ1
Security update
|
4 | ROM | 11 |
2023-11-16 | Download |
|
T540XXS4CWJ1
Security update
|
4 | SIO | 11 |
2023-11-16 | Download |
|
T540XXS4CWJ1
Security update
|
4 | XJP | 11 |
2023-11-09 | Download |
|
T540XXS4CWJ1
Security update
|
4 | XEZ | 11 |
2023-11-09 | Download |
|
T540XXS4CWJ1
Security update
|
4 | XEH | 11 |
2023-11-09 | Download |
|
T540XXS4CWJ1
Security update
|
4 | XEF | 11 |
2023-11-09 | Download |
|
T540XXS4CWJ1
Security update
|
4 | ITV | 11 |
2023-11-09 | Download |
|
T540XXS4CWJ1
Security update
|
4 | EUR | 11 |
2023-11-09 | Download |
|
T540XXS4CWJ1
Security update
|
4 | DBT | 11 |
2023-11-09 | Download |
|
T540XXS4CWJ1
Security update
|
4 | ATO | 11 |
2023-11-09 | Download |
Latest SM-T540 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 |
|---|---|---|---|---|
| ATO | T540XXS4CWJ1 | 4 | 11 | 2023-11-09 |
| AUT | T540XXS4CWJ1 | 4 | 11 | 2023-11-16 |
| DBT | T540XXS4CWJ1 | 4 | 11 | 2023-11-09 |
| EUR | T540XXS4CWJ1 | 4 | 11 | 2023-11-09 |
| GTO | T540XXS4CWJ2 | 4 | 11 | 2023-11-19 |
| ITV | T540XXS4CWJ1 | 4 | 11 | 2023-11-09 |
| MXO | T540XXS4CWJ2 | 4 | 11 | 2023-11-17 |
| PHE | T540XXS4CWJ1 | 4 | 11 | 2023-11-16 |
| ROM | T540XXS4CWJ1 | 4 | 11 | 2023-11-16 |
| SIO | T540XXS4CWJ1 | 4 | 11 | 2023-11-16 |
| TPH | T540XXS4CWJ1 | 4 | 11 | 2023-11-16 |
| XAR | T540XXS4CWJ1 | 4 | 11 | 2023-11-16 |
| XEF | T540XXS4CWJ1 | 4 | 11 | 2023-11-09 |
| XEH | T540XXS4CWJ1 | 4 | 11 | 2023-11-09 |
| XEZ | T540XXS4CWJ1 | 4 | 11 | 2023-11-09 |
| XJP | T540XXU4CYI1 | 4 | 11 | 2025-09-29 |
| XNZ | T540XXS4CWJ1 | 4 | 11 | 2023-11-16 |
| XSA | T540XXS4CWJ1 | 4 | 11 | 2023-11-16 |
| XSK | T540XXS4CWJ1 | 4 | 11 | 2023-11-16 |
How to Flash SM-T540 Firmware
Put the Samsung SM-T540 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 4 or higher if your phone is already on the latest firmware. Use HOME_CSC to keep your data, CSC for a full wipe.