A236MUBSDEZA1 – Galaxy A23 5G firmware

Build A236MUBSDEZA1 is a security update for the Galaxy A23 5G (SM-A236M) on Android 14 (One UI 6). It first appeared on Samsung's servers on Jan 13, 2026 (method) and has reached 17 regions so far. It raises the bootloader bit from 12 to 13: once installed, the device no longer accepts firmware with bit 12 or lower, so a downgrade to A236MUBSCEYJ1 is blocked. Samsung still serves this file.

Model
SM-A236M
Android
Android 14
Type
Security
Bootloader bit
13
First released
Jan 13, 2026
Regions
17

Rollout timeline by region

The date each region code (CSC) first received A236MUBSDEZA1, counted from the first release.

CSCRegionReleasedRolloutVersion (PDA/CSC/MODEM)
TPAPanamaJan 13, 2026day 0A236MUBSDEZA1/A236MOWODEZA1/A236MUBSDEZA1
ZTABrazil (Claro)Jan 13, 2026day 0A236MUBSDEZA1/A236MOWODEZA1/A236MUBSDEZA1
ZTMBrazil (TIM)Jan 13, 2026day 0A236MUBSDEZA1/A236MOWODEZA1/A236MUBSDEZA1
ZTOBrazilJan 13, 2026day 0A236MUBSDEZA1/A236MOWODEZA1/A236MUBSDEZA1
ZVVBrazil (Vivo)Jan 13, 2026day 0A236MUBSDEZA1/A236MOWODEZA1/A236MUBSDEZA1
AROArgentinaJan 22, 2026+9 daysA236MUBSDEZA1/A236MOWODEZA1/A236MUBSDEZA1
CGUGuatemala (Claro)Jan 22, 2026+9 daysA236MUBSDEZA1/A236MOWODEZA1/A236MUBSDEZA1
CTIArgentina (Claro)Jan 22, 2026+9 daysA236MUBSDEZA1/A236MOWODEZA1/A236MUBSDEZA1
GLONigeria (Glo)Jan 22, 2026+9 daysA236MUBSDEZA1/A236MOWODEZA1/A236MUBSDEZA1
GTOGuatemalaJan 22, 2026+9 daysA236MUBSDEZA1/A236MOWODEZA1/A236MUBSDEZA1
PSNArgentina (Personal)Jan 22, 2026+9 daysA236MUBSDEZA1/A236MOWODEZA1/A236MUBSDEZA1
UFNArgentina (Movistar)Jan 22, 2026+9 daysA236MUBSDEZA1/A236MOWODEZA1/A236MUBSDEZA1
CHEChile (Entel)Jan 27, 2026+14 daysA236MUBSDEZA1/A236MOWODEZA1/A236MUBSDEZA1
CHLChile (Claro)Jan 27, 2026+14 daysA236MUBSDEZA1/A236MOWODEZA1/A236MUBSDEZA1
CHOChileJan 27, 2026+14 daysA236MUBSDEZA1/A236MOWODEZA1/A236MUBSDEZA1
CHTChile (Movistar)Jan 27, 2026+14 daysA236MUBSDEZA1/A236MOWODEZA1/A236MUBSDEZA1
CHXChileJan 27, 2026+14 daysA236MUBSDEZA1/A236MOWODEZA1/A236MUBSDEZA1

Download and release notes

samloader download -m SM-A236M -r TPA -v A236MUBSDEZA1/A236MOWODEZA1/A236MUBSDEZA1

Samsung's release notes and security patch level for this update: SM-A236M / TPA on doc.samsungmobile.com. What each part of the build number means: decode A236MUBSDEZA1.