M536SKSUBGYI4 – Galaxy Quantum3 firmware

Build M536SKSUBGYI4 is a feature update for the Galaxy Quantum3 (SM-M536S) on Android 16 (One UI 8). It first appeared on Samsung's servers on Oct 12, 2025 (method) and has reached 1 region so far. It keeps bootloader bit 11, so downgrading to the previous build M536SKSSBFYG1 is still possible. Samsung still serves this file.

Model
SM-M536S
Android
Android 16
Type
Feature
Bootloader bit
11
First released
Oct 12, 2025
Regions
1

Rollout timeline by region

The date each region code (CSC) first received M536SKSUBGYI4, counted from the first release.

CSCRegionReleasedRolloutVersion (PDA/CSC/MODEM)
SKCSouth Korea (SKT)Oct 12, 2025day 0M536SKSUBGYI4/M536SSKCBGYI4/M536SKSUBGYI4

Download and release notes

samloader download -m SM-M536S -r SKC -v M536SKSUBGYI4/M536SSKCBGYI4/M536SKSUBGYI4

Samsung's release notes and security patch level for this update: SM-M536S / SKC on doc.samsungmobile.com. What each part of the build number means: decode M536SKSUBGYI4.