Samsung SM-E566B Firmware Overview
What is the latest SM-E566B firmware?
E566BXXU7DZJ1, released October 6, 2026 with Android 17. It is a feature update on bootloader binary 7. The archive holds 10 official builds across 1 region (CSC). Each one is the full stock ROM (flash file) for Odin, not an OTA patch.
Is the Samsung SM-E566B still getting updates?
Yes. The newest build is from October 2026.
Which Android versions did it get?
The SM-E566B builds in the archive run Android 15 to 17. The earliest build we have for each version:
- Android 17: E566BXXU7DZJ1 (Oct 2026), 1 build in total
- Android 16: E566BXXU3BYI6 (Sep 2025), 5 builds in total
- Android 15: E566BXXU1AYCB (Mar 2025), 3 builds in total
Can I downgrade the SM-E566B firmware?
Only to builds with the same bootloader binary (the Bit column) or higher. In the archive the binary of this model rose from 1 to 7:
- Binary 7 — since Sep 2026
- Binary 6 — since Aug 2026
- Binary 5 — since Feb 2026
- Binary 4 — since Nov 2025
- Binary 3 — since Aug 2025
- Binary 2 — since May 2025
- Binary 1 — since Mar 2025
A phone already on binary 7 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 7 build. How to read a build number.
All SM-E566B firmware builds
| Build / PDA | Bit | Region (CSC) | Android | Date | Download Link |
|---|---|---|---|---|---|
|
E566BXXU7DZJ1
Feature update
|
7 | INS | 17 |
2026-10-06 | Download |
|
E566BXXS7CZI1
Security update
|
7 | INS | 16 |
2026-09-12 | Download |
|
E566BXXS6CZH4
Security update
|
6 | INS | 16 |
2026-09-01 | Download |
|
E566BXXU5BZB4
Feature update
|
5 | INS | 16 |
2026-02-20 | Download |
|
E566BXXS4BYK2
Security update
|
4 | INS | 16 |
2025-11-12 | Download |
|
E566BXXU3BYI6
Feature update
|
3 | INS | 16 |
2025-09-23 | Download |
|
E566BXXS3AYH1
Security update
|
3 | INS | 15 |
2025-08-06 | Download |
|
E566BXXU2AYE4
Feature update
|
2 | INS | 15 |
2025-05-13 | Download |
|
E566BXXU1AYCB
Feature update
|
1 | INS | 15 |
2025-03-28 | Download |
|
E566BXXU5CZE2
Feature update
|
5 | INS | — |
N/A | Download |
How to Flash SM-E566B Firmware
Put the Samsung SM-E566B 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 7 or higher if your phone is already on the latest firmware. Use HOME_CSC to keep your data, CSC for a full wipe.