A236MUBSFEZE4 – Galaxy A23 5G firmware

Build A236MUBSFEZE4 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 May 28, 2026 (method) and has reached 17 regions so far. It raises the bootloader bit from 14 to 15: once installed, the device no longer accepts firmware with bit 14 or lower, so a downgrade to A236MUBSEEZB1 is blocked. Samsung still serves this file.

Model
SM-A236M
Android
Android 14
Type
Security
Bootloader bit
15
First released
May 28, 2026
Regions
17

Rollout timeline by region

The date each region code (CSC) first received A236MUBSFEZE4, counted from the first release.

CSCRegionReleasedRolloutVersion (PDA/CSC/MODEM)
AROArgentinaMay 28, 2026day 0A236MUBSFEZE4/A236MOWOFEZE4/A236MUBSFEZE4
CGUGuatemala (Claro)May 28, 2026day 0A236MUBSFEZE4/A236MOWOFEZE4/A236MUBSFEZE4
CTIArgentina (Claro)May 28, 2026day 0A236MUBSFEZE4/A236MOWOFEZE4/A236MUBSFEZE4
GLONigeria (Glo)May 28, 2026day 0A236MUBSFEZE4/A236MOWOFEZE4/A236MUBSFEZE4
GTOGuatemalaMay 28, 2026day 0A236MUBSFEZE4/A236MOWOFEZE4/A236MUBSFEZE4
PSNArgentina (Personal)May 28, 2026day 0A236MUBSFEZE4/A236MOWOFEZE4/A236MUBSFEZE4
TPAPanamaMay 28, 2026day 0A236MUBSFEZE4/A236MOWOFEZE4/A236MUBSFEZE4
UFNArgentina (Movistar)May 28, 2026day 0A236MUBSFEZE4/A236MOWOFEZE4/A236MUBSFEZE4
ZTABrazil (Claro)May 28, 2026day 0A236MUBSFEZE4/A236MOWOFEZE4/A236MUBSFEZE4
ZTMBrazil (TIM)May 28, 2026day 0A236MUBSFEZE4/A236MOWOFEZE4/A236MUBSFEZE4
ZTOBrazilMay 28, 2026day 0A236MUBSFEZE4/A236MOWOFEZE4/A236MUBSFEZE4
ZVVBrazil (Vivo)May 28, 2026day 0A236MUBSFEZE4/A236MOWOFEZE4/A236MUBSFEZE4
CHEChile (Entel)Jun 2, 2026+5 daysA236MUBSFEZE4/A236MOWOFEZE4/A236MUBSFEZE4
CHLChile (Claro)Jun 2, 2026+5 daysA236MUBSFEZE4/A236MOWOFEZE4/A236MUBSFEZE4
CHOChileJun 2, 2026+5 daysA236MUBSFEZE4/A236MOWOFEZE4/A236MUBSFEZE4
CHTChile (Movistar)Jun 2, 2026+5 daysA236MUBSFEZE4/A236MOWOFEZE4/A236MUBSFEZE4
CHXChileJun 2, 2026+5 daysA236MUBSFEZE4/A236MOWOFEZE4/A236MUBSFEZE4

Download and release notes

samloader download -m SM-A236M -r ARO -v A236MUBSFEZE4/A236MOWOFEZE4/A236MUBSFEZE4

Samsung's release notes and security patch level for this update: SM-A236M / ARO on doc.samsungmobile.com. What each part of the build number means: decode A236MUBSFEZE4.