Samsung Galaxy A40 (SM-A405FN) Firmware Overview
What is the latest SM-A405FN firmware?
A405FNXXU4CWC3, released May 25, 2023 with Android 11. It is a feature update on bootloader binary 4. The archive holds 20 official builds across 20 regions (CSC). Each one is the full stock ROM (flash file) for Odin, not an OTA patch.
Is the Samsung Galaxy A40 still getting updates?
Most likely not: there has been no new firmware since May 2023, 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-A405FN 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 Mar 2023
All SM-A405FN firmware builds
| Build / PDA | Bit | Region (CSC) | Android | Date | Download Link |
|---|---|---|---|---|---|
|
A405FNXXU4CWC3
Feature update
|
4 | CAU | 11 |
2023-05-25 | Download |
|
A405FNXXU4CWC3
Feature update
|
4 | SKZ | 11 |
2023-05-05 | Download |
|
A405FNXXU4CWC3
Feature update
|
4 | SEK | 11 |
2023-05-05 | Download |
|
A405FNXXU4CWC3
Feature update
|
4 | CAC | 11 |
2023-05-05 | Download |
|
A405FNXXU4CWC3
Feature update
|
4 | MET | 11 |
2023-05-05 | Download |
|
A405FNXXU4CWC3
Feature update
|
4 | ORS | 11 |
2023-05-05 | Download |
|
A405FNXXU4CWC3
Feature update
|
4 | ORO | 11 |
2023-05-05 | Download |
|
A405FNXXU4CWC3
Feature update
|
4 | OPV | 11 |
2023-05-05 | Download |
|
A405FNXXU4CWC3
Feature update
|
4 | FTM | 11 |
2023-05-05 | Download |
|
A405FNXXU4CWC3
Feature update
|
4 | AMO | 11 |
2023-05-05 | Download |
|
A405FNXXU4CWC3
Feature update
|
4 | XEC | 11 |
2023-04-28 | Download |
|
A405FNXXU4CWC3
Feature update
|
4 | TIM | 11 |
2023-04-28 | Download |
|
A405FNXXU4CWC3
Feature update
|
4 | O2C | 11 |
2023-04-28 | Download |
|
A405FNXXU4CWC3
Feature update
|
4 | EVR | 11 |
2023-04-28 | Download |
|
A405FNXXU4CWC3
Feature update
|
4 | BTE | 11 |
2023-04-28 | Download |
|
A405FNXXU4CWC3
Feature update
|
4 | PRT | 11 |
2023-04-28 | Download |
|
A405FNXXU4CWC3
Feature update
|
4 | BTB | 11 |
2023-04-28 | Download |
|
A405FNXXU4CWC3
Feature update
|
4 | PLS | 11 |
2023-04-28 | Download |
|
A405FNXXU4CWC3
Feature update
|
4 | MOT | 11 |
2023-04-28 | Download |
|
A405FNXXU4CWC3
Feature update
|
4 | SFR | 11 |
2023-04-28 | Download |
Latest SM-A405FN 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 |
|---|---|---|---|---|
| AMO | A405FNXXU4CWC3 | 4 | 11 | 2023-05-05 |
| BTB | A405FNXXU4CWC3 | 4 | 11 | 2023-04-28 |
| BTE | A405FNXXU4CWC3 | 4 | 11 | 2023-04-28 |
| CAC | A405FNXXU4CWC3 | 4 | 11 | 2023-05-05 |
| CAU | A405FNXXU4CWC3 | 4 | 11 | 2023-05-25 |
| EVR | A405FNXXU4CWC3 | 4 | 11 | 2023-04-28 |
| FTM | A405FNXXU4CWC3 | 4 | 11 | 2023-05-05 |
| MET | A405FNXXU4CWC3 | 4 | 11 | 2023-05-05 |
| MOT | A405FNXXU4CWC3 | 4 | 11 | 2023-04-28 |
| O2C | A405FNXXU4CWC3 | 4 | 11 | 2023-04-28 |
| OPV | A405FNXXU4CWC3 | 4 | 11 | 2023-05-05 |
| ORO | A405FNXXU4CWC3 | 4 | 11 | 2023-05-05 |
| ORS | A405FNXXU4CWC3 | 4 | 11 | 2023-05-05 |
| PLS | A405FNXXU4CWC3 | 4 | 11 | 2023-04-28 |
| PRT | A405FNXXU4CWC3 | 4 | 11 | 2023-04-28 |
| SEK | A405FNXXU4CWC3 | 4 | 11 | 2023-05-05 |
| SFR | A405FNXXU4CWC3 | 4 | 11 | 2023-04-28 |
| SKZ | A405FNXXU4CWC3 | 4 | 11 | 2023-05-05 |
| TIM | A405FNXXU4CWC3 | 4 | 11 | 2023-04-28 |
| XEC | A405FNXXU4CWC3 | 4 | 11 | 2023-04-28 |
How to Flash SM-A405FN Firmware
Put the Samsung Galaxy A40 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.