A336BXXSGGZA1 – Galaxy A33 5G firmware

Build A336BXXSGGZA1 is a security update for the Galaxy A33 5G (SM-A336B) on Android 16 (One UI 8). It first appeared on Samsung's servers on Feb 1, 2026 (method) and has reached 22 regions so far. It raises the bootloader bit from 15 to 16: once installed, the device no longer accepts firmware with bit 15 or lower, so a downgrade to A336BXXSFGYL1 is blocked. Samsung still serves this file.

Model
SM-A336B
Android
Android 16
Type
Security
Bootloader bit
16
First released
Feb 1, 2026
Regions
22

Rollout timeline by region

The date each region code (CSC) first received A336BXXSGGZA1, counted from the first release.

CSCRegionReleasedRolloutVersion (PDA/CSC/MODEM)
BOGFrance (Bouygues)Feb 1, 2026day 0A336BXXSGGZA1/A336BOXMGGZA1/A336BXXSGGZA1
BTBUnited Kingdom (BT)Feb 1, 2026day 0A336BXXSGGZA1/A336BOXMGGZA1/A336BXXSGGZA1
CAUCaucasusFeb 1, 2026day 0A336BXXSGGZA1/A336BOXMGGZA1/A336BXXSGGZA1
EUXEurope (Multi-CSC)Feb 1, 2026day 0A336BXXSGGZA1/A336BOXMGGZA1/A336BXXSGGZA1
EUYEurope (Multi-CSC)Feb 1, 2026day 0A336BXXSGGZA1/A336BOXMGGZA1/A336BXXSGGZA1
MEOPortugal (MEO)Feb 1, 2026day 0A336BXXSGGZA1/A336BOXMGGZA1/A336BXXSGGZA1
MOTSlovenia (Telekom)Feb 1, 2026day 0A336BXXSGGZA1/A336BOXMGGZA1/A336BXXSGGZA1
MSRSerbiaFeb 1, 2026day 0A336BXXSGGZA1/A336BOXMGGZA1/A336BXXSGGZA1
O2CCzech Republic (O2)Feb 1, 2026day 0A336BXXSGGZA1/A336BOXMGGZA1/A336BXXSGGZA1
PLSPoland (Plus)Feb 1, 2026day 0A336BXXSGGZA1/A336BOXMGGZA1/A336BXXSGGZA1
PRTPoland (Play)Feb 1, 2026day 0A336BXXSGGZA1/A336BOXMGGZA1/A336BXXSGGZA1
SEKUkraineFeb 1, 2026day 0A336BXXSGGZA1/A336BOXMGGZA1/A336BXXSGGZA1
SERRussiaFeb 1, 2026day 0A336BXXSGGZA1/A336BOXMGGZA1/A336BXXSGGZA1
SFRFrance (SFR)Feb 1, 2026day 0A336BXXSGGZA1/A336BOXMGGZA1/A336BXXSGGZA1
SIMSlovenia (A1)Feb 1, 2026day 0A336BXXSGGZA1/A336BOXMGGZA1/A336BXXSGGZA1
SKZKazakhstanFeb 1, 2026day 0A336BXXSGGZA1/A336BOXMGGZA1/A336BXXSGGZA1
SWCSwitzerlandFeb 1, 2026day 0A336BXXSGGZA1/A336BOXMGGZA1/A336BXXSGGZA1
TIMItaly (TIM)Feb 1, 2026day 0A336BXXSGGZA1/A336BOXMGGZA1/A336BXXSGGZA1
TOPSerbia/MontenegroFeb 1, 2026day 0A336BXXSGGZA1/A336BOXMGGZA1/A336BXXSGGZA1
VIPCroatia (A1)Feb 1, 2026day 0A336BXXSGGZA1/A336BOXMGGZA1/A336BXXSGGZA1
EVRUnited Kingdom (EE)Feb 1, 2026day 0A336BXXSGGZA1/A336BOXMGGZA1/A336BXXSGGZA1
MOBAustria (A1)Feb 1, 2026day 0A336BXXSGGZA1/A336BOXMGGZA1/A336BXXSGGZA1

Download and release notes

samloader download -m SM-A336B -r EUX -v A336BXXSGGZA1/A336BOXMGGZA1/A336BXXSGGZA1

Samsung's release notes and security patch level for this update: SM-A336B / EUX on doc.samsungmobile.com. What each part of the build number means: decode A336BXXSGGZA1.