Samsung Galaxy Quantum4 (SM-A546S) Firmware Overview
What is the latest SM-A546S firmware?
A546SKSSKFZI1, released September 9, 2026 with Android 16. It is a security update on bootloader binary 20. The archive holds 27 official builds across 1 region (CSC).
Is the Samsung Galaxy Quantum4 still getting updates?
Yes. The newest build is from September 2026.
Which Android versions did it get?
The SM-A546S builds in the archive run Android 14 to 16. The earliest build we have for each version:
- Android 16: A546SKSUCEYI5 (Oct 2025), 13 builds in total
- Android 15: A546SKSU9DYD7 (May 2025), 4 builds in total
- Android 14: A546SKSS6CXG1 (Jul 2024), 10 builds in total
Can I downgrade the SM-A546S firmware?
Only to builds with the same bootloader binary (the Bit column) or higher. In the archive the binary of this model rose from 6 to 20:
- Binary 20 — since Sep 2026
- Binary 19 — since Aug 2026
- Binary 18 — since Jul 2026
- Binary 17 — since Jun 2026
- Binary 16 — since Mar 2026
- Binary 15 — since Feb 2026
- Binary 14 — since Jan 2026
- Binary 13 — since Nov 2025
- Binary 12 — since Aug 2025
- Binary 11 — since Jul 2025
- Binary 10 — since Jun 2025
- Binary 9 — since Mar 2025
- Binary 8 — since Nov 2024
- Binary 7 — since Oct 2024
- Binary 6 — since Jul 2024
A phone already on binary 20 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 20 build. How to read a build number.
All SM-A546S firmware builds
| Build / PDA | Bit | Region (CSC) | Android | Date | Download Link |
|---|---|---|---|---|---|
|
A546SKSSKFZI1
Security update
|
20 | SKC | 16 |
2026-09-09 | Download |
|
A546SKSSJFZH3
Security update
|
19 | SKC | 16 |
2026-08-21 | Download |
|
A546SKSSIFZG1
Security update
|
18 | SKC | 16 |
2026-07-08 | Download |
|
A546SKSSHFZF2
Security update
|
17 | SKC | 16 |
2026-06-11 | Download |
|
A546SKSUGFZE2
Feature update
|
16 | SKC | 16 |
2026-05-14 | Download |
|
A546SKSSGEZC2
Security update
|
16 | SKC | 16 |
2026-04-09 | Download |
|
A546SKSSFEZC1
Security update
|
15 | SKC | 16 |
2026-03-25 | Download |
|
A546SKSSFEZB2
Security update
|
15 | SKC | 16 |
2026-02-25 | Download |
|
A546SKSSEEZA1
Security update
|
14 | SKC | 16 |
2026-01-21 | Download |
|
A546SKSSDEYL2
Security update
|
13 | SKC | 16 |
2025-12-17 | Download |
|
A546SKSSDEYK3
Security update
|
13 | SKC | 16 |
2025-11-20 | Download |
|
A546SKSSCEYJ3
Security update
|
12 | SKC | 16 |
2025-10-24 | Download |
|
A546SKSUCEYI5
Feature update
|
12 | SKC | 16 |
2025-10-01 | Download |
|
A546SKSSCDYH1
Security update
|
12 | SKC | 15 |
2025-08-18 | Download |
|
A546SKSSBDYG1
Security update
|
11 | SKC | 15 |
2025-07-23 | Download |
|
A546SKSSADYF1
Security update
|
10 | SKC | 15 |
2025-06-18 | Download |
|
A546SKSU9DYD7
Feature update
|
9 | SKC | 15 |
2025-05-14 | Download |
|
A546SKSS9CYC4
Security update
|
9 | SKC | 14 |
2025-04-09 | Download |
|
A546SKSS8CYB6
Security update
|
8 | SKC | 14 |
2025-03-13 | Download |
|
A546SKSS8CYB1
Security update
|
8 | SKC | 14 |
2025-02-19 | Download |
|
A546SKSS8CYA1
Security update
|
8 | SKC | 14 |
2025-01-23 | Download |
|
A546SKSS8CXL1
Security update
|
8 | SKC | 14 |
2024-12-18 | Download |
|
A546SKSU8CXK1
Feature update
|
8 | SKC | 14 |
2024-11-20 | Download |
|
A546SKSS7CXJ1
Security update
|
7 | SKC | 14 |
2024-10-18 | Download |
|
A546SKSS6CXI1
Security update
|
6 | SKC | 14 |
2024-09-25 | Download |
|
A546SKSU6CXG6
Feature update
|
6 | SKC | 14 |
2024-08-19 | Download |
|
A546SKSS6CXG1
Security update
|
6 | SKC | 14 |
2024-07-15 | Download |
How to Flash SM-A546S Firmware
Put the Samsung Galaxy Quantum4 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 20 or higher if your phone is already on the latest firmware. Use HOME_CSC to keep your data, CSC for a full wipe.