A536BXXSMGZE1 – Galaxy A53 5G firmware

Build A536BXXSMGZE1 is a security update for the Galaxy A53 5G (SM-A536B) on Android 16 (One UI 8). It first appeared on Samsung's servers on May 24, 2026 (method) and has reached 18 regions so far. It raises the bootloader bit from 21 to 22: once installed, the device no longer accepts firmware with bit 21 or lower, so a downgrade to A536BXXSLGZD1 is blocked. Samsung still serves this file.

Model
SM-A536B
Android
Android 16
Type
Security
Bootloader bit
22
First released
May 24, 2026
Regions
18

Rollout timeline by region

The date each region code (CSC) first received A536BXXSMGZE1, counted from the first release.

CSCRegionReleasedRolloutVersion (PDA/CSC/MODEM)
BOGFrance (Bouygues)May 24, 2026day 0A536BXXSMGZE1/A536BOXMMGZE1/A536BXXSMGZE1
BTBUnited Kingdom (BT)May 24, 2026day 0A536BXXSMGZE1/A536BOXMMGZE1/A536BXXSMGZE1
EUXEurope (Multi-CSC)May 24, 2026day 0A536BXXSMGZE1/A536BOXMMGZE1/A536BXXSMGZE1
EUYEurope (Multi-CSC)May 24, 2026day 0A536BXXSMGZE1/A536BOXMMGZE1/A536BXXSMGZE1
EVRUnited Kingdom (EE)May 24, 2026day 0A536BXXSMGZE1/A536BOXMMGZE1/A536BXXSMGZE1
MEOPortugal (MEO)May 24, 2026day 0A536BXXSMGZE1/A536BOXMMGZE1/A536BXXSMGZE1
MOBAustria (A1)May 24, 2026day 0A536BXXSMGZE1/A536BOXMMGZE1/A536BXXSMGZE1
MOTSlovenia (Telekom)May 24, 2026day 0A536BXXSMGZE1/A536BOXMMGZE1/A536BXXSMGZE1
MSRSerbiaMay 24, 2026day 0A536BXXSMGZE1/A536BOXMMGZE1/A536BXXSMGZE1
O2CCzech Republic (O2)May 24, 2026day 0A536BXXSMGZE1/A536BOXMMGZE1/A536BXXSMGZE1
PLSPoland (Plus)May 24, 2026day 0A536BXXSMGZE1/A536BOXMMGZE1/A536BXXSMGZE1
PRTPoland (Play)May 24, 2026day 0A536BXXSMGZE1/A536BOXMMGZE1/A536BXXSMGZE1
SFRFrance (SFR)May 24, 2026day 0A536BXXSMGZE1/A536BOXMMGZE1/A536BXXSMGZE1
SIMSlovenia (A1)May 24, 2026day 0A536BXXSMGZE1/A536BOXMMGZE1/A536BXXSMGZE1
SWCSwitzerlandMay 24, 2026day 0A536BXXSMGZE1/A536BOXMMGZE1/A536BXXSMGZE1
TIMItaly (TIM)May 24, 2026day 0A536BXXSMGZE1/A536BOXMMGZE1/A536BXXSMGZE1
TOPSerbia/MontenegroMay 24, 2026day 0A536BXXSMGZE1/A536BOXMMGZE1/A536BXXSMGZE1
VIPCroatia (A1)May 24, 2026day 0A536BXXSMGZE1/A536BOXMMGZE1/A536BXXSMGZE1

Download and release notes

samloader download -m SM-A536B -r EUX -v A536BXXSMGZE1/A536BOXMMGZE1/A536BXXSMGZE1

Samsung's release notes and security patch level for this update: SM-A536B / EUX on doc.samsungmobile.com. What each part of the build number means: decode A536BXXSMGZE1.