Samsung Galaxy S23 FE (SM-S711N) Firmware Overview
What is the latest SM-S711N firmware?
S711NKSSIEZJ2, released October 9, 2026 with Android 16. It is a security update on bootloader binary 18. The archive holds 20 official builds across 4 regions (CSC). Each one is the full stock ROM (flash file) for Odin, not an OTA patch.
Is the Samsung Galaxy S23 FE still getting updates?
Yes. The newest build is from October 2026, and 4 of 4 regions already have a build from that month; the rest usually follow within a few weeks.
Can I downgrade the SM-S711N firmware?
Only to builds with the same bootloader binary (the Bit column) or higher. In the archive the binary of this model rose from 15 to 18:
- Binary 18 — since Sep 2026
- Binary 17 — since Aug 2026
- Binary 16 — since Jul 2026
- Binary 15 — since Jun 2026
A phone already on binary 18 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 18 build. How to read a build number.
All SM-S711N firmware builds
| Build / PDA | Bit | Region (CSC) | Android | Date | Download Link |
|---|---|---|---|---|---|
|
S711NKSSIEZJ2
Security update
|
18 | LUC | 16 |
2026-10-09 | Download |
|
S711NKSSIEZJ2
Security update
|
18 | SKC | 16 |
2026-10-09 | Download |
|
S711NKSSIEZJ2
Security update
|
18 | KTC | 16 |
2026-10-09 | Download |
|
S711NKSSIEZJ2
Security update
|
18 | KOO | 16 |
2026-10-09 | Download |
|
S711NKSSIEZI2
Security update
|
18 | LUC | 16 |
2026-09-10 | Download |
|
S711NKSSIEZI2
Security update
|
18 | KOO | 16 |
2026-09-10 | Download |
|
S711NKSSIEZI2
Security update
|
18 | SKC | 16 |
2026-09-10 | Download |
|
S711NKSSIEZI2
Security update
|
18 | KTC | 16 |
2026-09-10 | Download |
|
S711NKSSHEZH2
Security update
|
17 | SKC | 16 |
2026-08-14 | Download |
|
S711NKSSHEZH2
Security update
|
17 | KOO | 16 |
2026-08-14 | Download |
|
S711NKSSHEZH2
Security update
|
17 | LUC | 16 |
2026-08-14 | Download |
|
S711NKSSHEZH2
Security update
|
17 | KTC | 16 |
2026-08-14 | Download |
|
S711NKSSGEZG1
Security update
|
16 | SKC | 16 |
2026-07-09 | Download |
|
S711NKSSGEZG1
Security update
|
16 | KOO | 16 |
2026-07-09 | Download |
|
S711NKSSGEZG1
Security update
|
16 | KTC | 16 |
2026-07-09 | Download |
|
S711NKSSGEZG1
Security update
|
16 | LUC | 16 |
2026-07-09 | Download |
|
S711NKSSFEZF1
Security update
|
15 | SKC | 16 |
2026-06-12 | Download |
|
S711NKSSFEZF1
Security update
|
15 | LUC | 16 |
2026-06-12 | Download |
|
S711NKSSFEZF1
Security update
|
15 | KTC | 16 |
2026-06-12 | Download |
|
S711NKSSFEZF1
Security update
|
15 | KOO | 16 |
2026-06-12 | Download |
Latest SM-S711N 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 |
|---|---|---|---|---|
| KOO | S711NKSSIEZJ2 | 18 | 16 | 2026-10-09 |
| KTC | S711NKSSIEZJ2 | 18 | 16 | 2026-10-09 |
| LUC | S711NKSSIEZJ2 | 18 | 16 | 2026-10-09 |
| SKC | S711NKSSIEZJ2 | 18 | 16 | 2026-10-09 |
How to Flash SM-S711N Firmware
Put the Samsung Galaxy S23 FE 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 18 or higher if your phone is already on the latest firmware. Use HOME_CSC to keep your data, CSC for a full wipe.