A336MUBSGGZA1 – Galaxy A33 5G firmware

Build A336MUBSGGZA1 is a security update for the Galaxy A33 5G (SM-A336M) on Android 16 (One UI 8). It first appeared on Samsung's servers on Feb 2, 2026 (method) and has reached 37 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 A336MUBSFGYL1 is blocked. Samsung still serves this file.

Model
SM-A336M
Android
Android 16
Type
Security
Bootloader bit
16
First released
Feb 2, 2026
Regions
37

Rollout timeline by region

The date each region code (CSC) first received A336MUBSGGZA1, counted from the first release.

CSCRegionReleasedRolloutVersion (PDA/CSC/MODEM)
ZTABrazil (Claro)Feb 2, 2026day 0A336MUBSGGZA1/A336MOWOGGZA1/A336MUBSGGZA1
ZTMBrazil (TIM)Feb 2, 2026day 0A336MUBSGGZA1/A336MOWOGGZA1/A336MUBSGGZA1
ZTOBrazilFeb 2, 2026day 0A336MUBSGGZA1/A336MOWOGGZA1/A336MUBSGGZA1
ZVVBrazil (Vivo)Feb 2, 2026day 0A336MUBSGGZA1/A336MOWOGGZA1/A336MUBSGGZA1
PSNArgentina (Personal)Feb 2, 2026day 0A336MUBSGGZA1/A336MOWOGGZA1/A336MUBSGGZA1
SAMOceaniaFeb 2, 2026day 0A336MUBSGGZA1/A336MOWOGGZA1/A336MUBSGGZA1
TCEMexico (Telcel)Feb 2, 2026day 0A336MUBSGGZA1/A336MOWOGGZA1/A336MUBSGGZA1
PEOPeruFeb 2, 2026day 0A336MUBSGGZA1/A336MOWOGGZA1/A336MUBSGGZA1
PETPeru (Movistar)Feb 2, 2026day 0A336MUBSGGZA1/A336MOWOGGZA1/A336MUBSGGZA1
PGUGuatemalaFeb 2, 2026day 0A336MUBSGGZA1/A336MOWAGGZA1/A336MUBSGGZA1
PNTPanamaFeb 2, 2026day 0A336MUBSGGZA1/A336MOWOGGZA1/A336MUBSGGZA1
ECOEcuadorFeb 2, 2026day 0A336MUBSGGZA1/A336MOWAGGZA1/A336MUBSGGZA1
IUSMexico (AT&T)Feb 2, 2026day 0A336MUBSGGZA1/A336MOWOGGZA1/A336MUBSGGZA1
MXOMexicoFeb 2, 2026day 0A336MUBSGGZA1/A336MOWOGGZA1/A336MUBSGGZA1
DORDominican RepublicFeb 2, 2026day 0A336MUBSGGZA1/A336MOWEGGZA1/A336MUBSGGZA1
EBEEcuadorFeb 2, 2026day 0A336MUBSGGZA1/A336MOWOGGZA1/A336MUBSGGZA1
GTOGuatemalaFeb 2, 2026day 0A336MUBSGGZA1/A336MOWOGGZA1/A336MUBSGGZA1
CRCCosta RicaFeb 2, 2026day 0A336MUBSGGZA1/A336MOWAGGZA1/A336MUBSGGZA1
CTIArgentina (Claro)Feb 2, 2026day 0A336MUBSGGZA1/A336MOWOGGZA1/A336MUBSGGZA1
AROArgentinaFeb 2, 2026day 0A336MUBSGGZA1/A336MOWOGGZA1/A336MUBSGGZA1
BVOBoliviaFeb 2, 2026day 0A336MUBSGGZA1/A336MOWOGGZA1/A336MUBSGGZA1
CDRDominican RepublicFeb 2, 2026day 0A336MUBSGGZA1/A336MOWAGGZA1/A336MUBSGGZA1
CGUGuatemala (Claro)Feb 2, 2026day 0A336MUBSGGZA1/A336MOWOGGZA1/A336MUBSGGZA1
CHEChile (Entel)Feb 2, 2026day 0A336MUBSGGZA1/A336MOWOGGZA1/A336MUBSGGZA1
CHLChile (Claro)Feb 2, 2026day 0A336MUBSGGZA1/A336MOWOGGZA1/A336MUBSGGZA1
CHOChileFeb 2, 2026day 0A336MUBSGGZA1/A336MOWOGGZA1/A336MUBSGGZA1
CHTChile (Movistar)Feb 2, 2026day 0A336MUBSGGZA1/A336MOWOGGZA1/A336MUBSGGZA1
CHXChileFeb 2, 2026day 0A336MUBSGGZA1/A336MOWOGGZA1/A336MUBSGGZA1
COBColombia (Movistar)Feb 2, 2026day 0A336MUBSGGZA1/A336MOWOGGZA1/A336MUBSGGZA1
COLColombiaFeb 2, 2026day 0A336MUBSGGZA1/A336MOWOGGZA1/A336MUBSGGZA1
COMColombia (Claro)Feb 2, 2026day 0A336MUBSGGZA1/A336MOWAGGZA1/A336MUBSGGZA1
COOColombiaFeb 2, 2026day 0A336MUBSGGZA1/A336MOWOGGZA1/A336MUBSGGZA1
TMMMyanmarFeb 2, 2026day 0A336MUBSGGZA1/A336MOWOGGZA1/A336MUBSGGZA1
TPAPanamaFeb 2, 2026day 0A336MUBSGGZA1/A336MOWOGGZA1/A336MUBSGGZA1
UFNArgentina (Movistar)Feb 2, 2026day 0A336MUBSGGZA1/A336MOWOGGZA1/A336MUBSGGZA1
UPOUruguayFeb 2, 2026day 0A336MUBSGGZA1/A336MOWOGGZA1/A336MUBSGGZA1
UYOUruguayFeb 2, 2026day 0A336MUBSGGZA1/A336MOWOGGZA1/A336MUBSGGZA1

Download and release notes

samloader download -m SM-A336M -r ZTA -v A336MUBSGGZA1/A336MOWOGGZA1/A336MUBSGGZA1

Samsung's release notes and security patch level for this update: SM-A336M / ZTA on doc.samsungmobile.com. What each part of the build number means: decode A336MUBSGGZA1.