A356BXXSACZD5 – Galaxy A35 5G firmware

Build A356BXXSACZD5 is a security update for the Galaxy A35 5G (SM-A356B) on Android 16 (One UI 8). It first appeared on Samsung's servers on Apr 22, 2026 (method) and has reached 16 regions so far. It raises the bootloader bit from 9 to 10: once installed, the device no longer accepts firmware with bit 9 or lower, so a downgrade to A356BXXS9CZB6 is blocked. Samsung still serves this file.

Model
SM-A356B
Android
Android 16
Type
Security
Bootloader bit
10
First released
Apr 22, 2026
Regions
16

Rollout timeline by region

The date each region code (CSC) first received A356BXXSACZD5, counted from the first release.

CSCRegionReleasedRolloutVersion (PDA/CSC/MODEM)
BOGFrance (Bouygues)Apr 22, 2026day 0A356BXXSACZD5/A356BOXMACZD5/A356BXXSACZD5
EUXEurope (Multi-CSC)Apr 22, 2026day 0A356BXXSACZD5/A356BOXMACZD5/A356BXXSACZD5
EUYEurope (Multi-CSC)Apr 22, 2026day 0A356BXXSACZD5/A356BOXMACZD5/A356BXXSACZD5
EVRUnited Kingdom (EE)Apr 22, 2026day 0A356BXXSACZD5/A356BOXMACZD5/A356BXXSACZD5
MEOPortugal (MEO)Apr 22, 2026day 0A356BXXSACZD5/A356BOXMACZD5/A356BXXSACZD5
MOBAustria (A1)Apr 22, 2026day 0A356BXXSACZD5/A356BOXMACZD5/A356BXXSACZD5
MOTSlovenia (Telekom)Apr 22, 2026day 0A356BXXSACZD5/A356BOXMACZD5/A356BXXSACZD5
MSRSerbiaApr 22, 2026day 0A356BXXSACZD5/A356BOXMACZD5/A356BXXSACZD5
O2CCzech Republic (O2)Apr 22, 2026day 0A356BXXSACZD5/A356BOXMACZD5/A356BXXSACZD5
PLSPoland (Plus)Apr 22, 2026day 0A356BXXSACZD5/A356BOXMACZD5/A356BXXSACZD5
PRTPoland (Play)Apr 22, 2026day 0A356BXXSACZD5/A356BOXMACZD5/A356BXXSACZD5
SFRFrance (SFR)Apr 22, 2026day 0A356BXXSACZD5/A356BOXMACZD5/A356BXXSACZD5
SIMSlovenia (A1)Apr 22, 2026day 0A356BXXSACZD5/A356BOXMACZD5/A356BXXSACZD5
SWCSwitzerlandApr 22, 2026day 0A356BXXSACZD5/A356BOXMACZD5/A356BXXSACZD5
TOPSerbia/MontenegroApr 22, 2026day 0A356BXXSACZD5/A356BOXMACZD5/A356BXXSACZD5
VIPCroatia (A1)Apr 22, 2026day 0A356BXXSACZD5/A356BOXMACZD5/A356BXXSACZD5

Download and release notes

samloader download -m SM-A356B -r EUX -v A356BXXSACZD5/A356BOXMACZD5/A356BXXSACZD5

Samsung's release notes and security patch level for this update: SM-A356B / EUX on doc.samsungmobile.com. What each part of the build number means: decode A356BXXSACZD5.