A356BXXSBDZG2 – Galaxy A35 5G firmware

Build A356BXXSBDZG2 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 Jul 19, 2026 (method) and has reached 16 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 A356BXXUADZE8 is blocked. Samsung still serves this file.

Model
SM-A356B
Android
Android 16
Type
Security
Bootloader bit
11
First released
Jul 19, 2026
Regions
16

Rollout timeline by region

The date each region code (CSC) first received A356BXXSBDZG2, counted from the first release.

CSCRegionReleasedRolloutVersion (PDA/CSC/MODEM)
BOGFrance (Bouygues)Jul 19, 2026day 0A356BXXSBDZG2/A356BOXMBDZG2/A356BXXSBDZG2
EUXEurope (Multi-CSC)Jul 19, 2026day 0A356BXXSBDZG2/A356BOXMBDZG2/A356BXXSBDZG2
EUYEurope (Multi-CSC)Jul 19, 2026day 0A356BXXSBDZG2/A356BOXMBDZG2/A356BXXSBDZG2
EVRUnited Kingdom (EE)Jul 19, 2026day 0A356BXXSBDZG2/A356BOXMBDZG2/A356BXXSBDZG2
MEOPortugal (MEO)Jul 19, 2026day 0A356BXXSBDZG2/A356BOXMBDZG2/A356BXXSBDZG2
MOBAustria (A1)Jul 19, 2026day 0A356BXXSBDZG2/A356BOXMBDZG2/A356BXXSBDZG2
MOTSlovenia (Telekom)Jul 19, 2026day 0A356BXXSBDZG2/A356BOXMBDZG2/A356BXXSBDZG2
MSRSerbiaJul 19, 2026day 0A356BXXSBDZG2/A356BOXMBDZG2/A356BXXSBDZG2
O2CCzech Republic (O2)Jul 19, 2026day 0A356BXXSBDZG2/A356BOXMBDZG2/A356BXXSBDZG2
PLSPoland (Plus)Jul 19, 2026day 0A356BXXSBDZG2/A356BOXMBDZG2/A356BXXSBDZG2
PRTPoland (Play)Jul 19, 2026day 0A356BXXSBDZG2/A356BOXMBDZG2/A356BXXSBDZG2
SFRFrance (SFR)Jul 19, 2026day 0A356BXXSBDZG2/A356BOXMBDZG2/A356BXXSBDZG2
SIMSlovenia (A1)Jul 19, 2026day 0A356BXXSBDZG2/A356BOXMBDZG2/A356BXXSBDZG2
SWCSwitzerlandJul 19, 2026day 0A356BXXSBDZG2/A356BOXMBDZG2/A356BXXSBDZG2
TOPSerbia/MontenegroJul 19, 2026day 0A356BXXSBDZG2/A356BOXMBDZG2/A356BXXSBDZG2
VIPCroatia (A1)Jul 19, 2026day 0A356BXXSBDZG2/A356BOXMBDZG2/A356BXXSBDZG2

Download and release notes

samloader download -m SM-A356B -r EUX -v A356BXXSBDZG2/A356BOXMBDZG2/A356BXXSBDZG2

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 A356BXXSBDZG2.