A536NKSSIGZH4 – Galaxy A53 5G firmware
Build A536NKSSIGZH4 is a security update for the Galaxy A53 5G (SM-A536N)
on Android 16 (One UI 8). It first appeared on Samsung's servers on Aug 30, 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 A536NKSSHGZE2 is blocked. Samsung still serves this file.
- Model
- SM-A536N
- Android
- Android 16
- Type
- Security
- Bootloader bit
- 18
- First released
- Aug 30, 2026
- Regions
- 4
Rollout timeline by region
The date each region code (CSC) first received A536NKSSIGZH4, counted from the first release.
| CSC | Region | Released | Rollout | Version (PDA/CSC/MODEM) |
|---|---|---|---|---|
KOO | South Korea | Aug 30, 2026 | day 0 | A536NKSSIGZH4/A536NOKRIGZH4/A536NKOSIGZH3 |
KTC | South Korea (KT) | Aug 30, 2026 | day 0 | A536NKSSIGZH4/A536NOKRIGZH4/A536NKOSIGZH3 |
LUC | South Korea (LG U+) | Aug 30, 2026 | day 0 | A536NKSSIGZH4/A536NOKRIGZH4/A536NKOSIGZH3 |
SKC | South Korea (SKT) | Aug 30, 2026 | day 0 | A536NKSSIGZH4/A536NOKRIGZH4/A536NKOSIGZH3 |
Download and release notes
samloader download -m SM-A536N -r KOO -v A536NKSSIGZH4/A536NOKRIGZH4/A536NKOSIGZH3Samsung's release notes and security patch level for this update: SM-A536N / KOO on doc.samsungmobile.com. What each part of the build number means: decode A536NKSSIGZH4.