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).
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.