S926NKSSIEZJ1 – Galaxy S24+ firmware
Build S926NKSSIEZJ1 is a security update for the Galaxy S24+ (SM-S926N)
on Android 17 (One UI 9). It first appeared on Samsung's servers on Oct 21, 2026 (method) and has reached
4 regions so far. It raises the bootloader bit from 17 to 18: once installed, the device no longer accepts firmware with bit 17 or lower, so a downgrade to S926NKSUHEZIF is blocked. Samsung still serves this file.
- Model
- SM-S926N
- Android
- Android 17
- Type
- Security
- Bootloader bit
- 18
- First released
- Oct 21, 2026
- Regions
- 4
Rollout timeline by region
The date each region code (CSC) first received S926NKSSIEZJ1, counted from the first release.
| CSC | Region | Released | Rollout | Version (PDA/CSC/MODEM) |
|---|---|---|---|---|
KOO | South Korea | Oct 21, 2026 | day 0 | S926NKSSIEZJ1/S926NOKRIEZJ1/S926NKSSIEZJ1 |
KTC | South Korea (KT) | Oct 21, 2026 | day 0 | S926NKSSIEZJ1/S926NOKRIEZJ1/S926NKSSIEZJ1 |
LUC | South Korea (LG U+) | Oct 21, 2026 | day 0 | S926NKSSIEZJ1/S926NOKRIEZJ1/S926NKSSIEZJ1 |
SKC | South Korea (SKT) | Oct 21, 2026 | day 0 | S926NKSSIEZJ1/S926NOKRIEZJ1/S926NKSSIEZJ1 |
Download and release notes
samloader download -m SM-S926N -r KOO -v S926NKSSIEZJ1/S926NOKRIEZJ1/S926NKSSIEZJ1Samsung's release notes and security patch level for this update: SM-S926N / KOO on doc.samsungmobile.com. What each part of the build number means: decode S926NKSSIEZJ1.