Samsung Galaxy A54 5G (SCG21) Firmware Overview
What is the latest SCG21 firmware?
SCG21KDU1FZJ5, released October 14, 2026 with Android 17. It is a feature update on bootloader binary 1. The archive holds 14 official builds across 1 region (CSC). Each one is the full stock ROM (flash file) for Odin, not an OTA patch.
Is the Samsung Galaxy A54 5G still getting updates?
Yes. The newest build is from October 2026.
Which Android versions did it get?
The SCG21 builds in the archive run Android 13 to 17. The earliest build we have for each version:
- Android 17: SCG21KDU1FZJ5 (Oct 2026), 1 build in total
- Android 16: SCG21KDU1DYJ4 (Oct 2025), 3 builds in total
- Android 15: SCG21KDU1CYE3 (May 2025), 2 builds in total
- Android 14: SCG21KDU1BWK2 (Dec 2023), 5 builds in total
- Android 13: SCG21KDU1AWE2 (Jun 2023), 2 builds in total
Can I downgrade the SCG21 firmware?
Only to builds with the same bootloader binary (the Bit column) or higher. All decodable builds in the archive share binary 1:
- Binary 1 — since May 2023
All SCG21 firmware builds
| Build / PDA | Bit | Region (CSC) | Android | Date | Download Link |
|---|---|---|---|---|---|
|
SCG21KDU1FZJ5
Feature update
|
1 | KDI | 17 |
2026-10-14 | Download |
|
SCG21KDS1EZH5
Security update
|
1 | KDI | 16 |
2026-08-24 | Download |
|
SCG21KDU1EZE9
Feature update
|
1 | KDI | 16 |
2026-05-14 | Download |
|
SCG21KDU1DYJ4
Feature update
|
1 | KDI | 16 |
2025-10-24 | Download |
|
SCG21KDS1CYH1
Security update
|
1 | KDI | 15 |
2025-08-11 | Download |
|
SCG21KDU1CYE3
Feature update
|
1 | KDI | 15 |
2025-05-21 | Download |
|
SCG21KDS1BYD2
Security update
|
1 | KDI | 14 |
2025-04-30 | Download |
|
SCG21KDU1BYC3
Feature update
|
1 | KDI | 14 |
2025-03-28 | Download |
|
SCG21KDS1BYA2
Security update
|
1 | KDI | 14 |
2025-01-15 | Download |
|
SCG21KDU1BXK1
Feature update
|
1 | KDI | 14 |
2024-11-08 | Download |
|
SCG21KDU1BWK2
Feature update
|
1 | KDI | 14 |
2023-12-18 | Download |
|
SCG21KDU1AWH1
Feature update
|
1 | KDI | 13 |
2023-09-15 | Download |
|
SCG21KDU1AWE2
Feature update
|
1 | KDI | 13 |
2023-06-13 | Download |
|
SCG21KDS1DZB7
Security update
|
1 | KDI | — |
N/A | Download |
How to Flash SCG21 Firmware
Put the Samsung Galaxy A54 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 1 or higher if your phone is already on the latest firmware. Use HOME_CSC to keep your data, CSC for a full wipe.