S936NKSSBCZG3 – Galaxy S25+ firmware

Build S936NKSSBCZG3 is a security update for the Galaxy S25+ (SM-S936N) on Android 16 (One UI 8). It first appeared on Samsung's servers on Jul 8, 2026 (method) and has reached 4 regions so far. It raises the bootloader bit from 10 to 11: once installed, the device no longer accepts firmware with bit 10 or lower, so a downgrade to S936NKSUACZF1 is blocked. Samsung still serves this file.

Model
SM-S936N
Android
Android 16
Type
Security
Bootloader bit
11
First released
Jul 8, 2026
Regions
4

Rollout timeline by region

The date each region code (CSC) first received S936NKSSBCZG3, counted from the first release.

CSCRegionReleasedRolloutVersion (PDA/CSC/MODEM)
KOOSouth KoreaJul 8, 2026day 0S936NKSSBCZG3/S936NOKRBCZG3/S936NKSSBCZG1
KTCSouth Korea (KT)Jul 8, 2026day 0S936NKSSBCZG3/S936NOKRBCZG3/S936NKSSBCZG1
LUCSouth Korea (LG U+)Jul 8, 2026day 0S936NKSSBCZG3/S936NOKRBCZG3/S936NKSSBCZG1
SKCSouth Korea (SKT)Jul 8, 2026day 0S936NKSSBCZG3/S936NOKRBCZG3/S936NKSSBCZG1

Download and release notes

samloader download -m SM-S936N -r KOO -v S936NKSSBCZG3/S936NOKRBCZG3/S936NKSSBCZG1

Samsung's release notes and security patch level for this update: SM-S936N / KOO on doc.samsungmobile.com. What each part of the build number means: decode S936NKSSBCZG3.