A042MUBSGEZB3 – Galaxy A04e firmware

Build A042MUBSGEZB3 is a security update for the Galaxy A04e (SM-A042M) on Android 14 (One UI 6). It first appeared on Samsung's servers on Mar 9, 2026 (method) and has reached 35 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 A042MUBSFEZA3 is blocked. Samsung still serves this file.

Model
SM-A042M
Android
Android 14
Type
Security
Bootloader bit
16
First released
Mar 9, 2026
Regions
35

Rollout timeline by region

The date each region code (CSC) first received A042MUBSGEZB3, counted from the first release.

CSCRegionReleasedRolloutVersion (PDA/CSC/MODEM)
BVOBoliviaMar 9, 2026day 0A042MUBSGEZB3/A042MOWOGEZB3/A042MUBSGEZB2
CDRDominican RepublicMar 9, 2026day 0A042MUBSGEZB3/A042MOWAGEZB3/A042MUBSGEZB2
CGUGuatemala (Claro)Mar 9, 2026day 0A042MUBSGEZB3/A042MOWBGEZB3/A042MUBSGEZB2
AROArgentinaMar 11, 2026+2 daysA042MUBSGEZB3/A042MOWOGEZB3/A042MUBSGEZB2
CTIArgentina (Claro)Mar 11, 2026+2 daysA042MUBSGEZB3/A042MOWOGEZB3/A042MUBSGEZB2
PSNArgentina (Personal)Mar 11, 2026+2 daysA042MUBSGEZB3/A042MOWOGEZB3/A042MUBSGEZB2
UFNArgentina (Movistar)Mar 11, 2026+2 daysA042MUBSGEZB3/A042MOWOGEZB3/A042MUBSGEZB2
COMColombia (Claro)Mar 12, 2026+3 daysA042MUBSGEZB3/A042MOWAGEZB3/A042MUBSGEZB2
GTOGuatemalaMar 12, 2026+3 daysA042MUBSGEZB3/A042MOWOGEZB3/A042MUBSGEZB2
NBSLatin America (open market)Mar 12, 2026+3 daysA042MUBSGEZB3/A042MOWBGEZB3/A042MUBSGEZB2
DORDominican RepublicMar 16, 2026+7 daysA042MUBSGEZB3/A042MOWBGEZB3/A042MUBSGEZB2
GLONigeria (Glo)Mar 16, 2026+7 daysA042MUBSGEZB3/A042MOWBGEZB3/A042MUBSGEZB2
IUSMexico (AT&T)Mar 16, 2026+7 daysA042MUBSGEZB3/A042MOWOGEZB3/A042MUBSGEZB2
MXOMexicoMar 16, 2026+7 daysA042MUBSGEZB3/A042MOWOGEZB3/A042MUBSGEZB2
PEOPeruMar 16, 2026+7 daysA042MUBSGEZB3/A042MOWBGEZB3/A042MUBSGEZB2
PETPeru (Movistar)Mar 16, 2026+7 daysA042MUBSGEZB3/A042MOWBGEZB3/A042MUBSGEZB2
PGUGuatemalaMar 16, 2026+7 daysA042MUBSGEZB3/A042MOWBGEZB3/A042MUBSGEZB2
PNTPanamaMar 16, 2026+7 daysA042MUBSGEZB3/A042MOWBGEZB3/A042MUBSGEZB2
SAMOceaniaMar 16, 2026+7 daysA042MUBSGEZB3/A042MOWBGEZB3/A042MUBSGEZB2
TCEMexico (Telcel)Mar 16, 2026+7 daysA042MUBSGEZB3/A042MOWOGEZB3/A042MUBSGEZB2
TGPParaguayMar 16, 2026+7 daysA042MUBSGEZB3/A042MOWOGEZB3/A042MUBSGEZB2
TMMMyanmarMar 16, 2026+7 daysA042MUBSGEZB3/A042MOWOGEZB3/A042MUBSGEZB2
TPAPanamaMar 16, 2026+7 daysA042MUBSGEZB3/A042MOWOGEZB3/A042MUBSGEZB2
UPOUruguayMar 16, 2026+7 daysA042MUBSGEZB3/A042MOWOGEZB3/A042MUBSGEZB2
UYOUruguayMar 16, 2026+7 daysA042MUBSGEZB3/A042MOWOGEZB3/A042MUBSGEZB2
COBColombia (Movistar)Mar 17, 2026+8 daysA042MUBSGEZB3/A042MOWBGEZB3/A042MUBSGEZB2
COLColombiaMar 17, 2026+8 daysA042MUBSGEZB3/A042MOWBGEZB3/A042MUBSGEZB2
COOColombiaMar 17, 2026+8 daysA042MUBSGEZB3/A042MOWBGEZB3/A042MUBSGEZB2
CHEChile (Entel)Mar 18, 2026+9 daysA042MUBSGEZB3/A042MOWBGEZB3/A042MUBSGEZB2
CHLChile (Claro)Mar 18, 2026+9 daysA042MUBSGEZB3/A042MOWBGEZB3/A042MUBSGEZB2
CHOChileMar 18, 2026+9 daysA042MUBSGEZB3/A042MOWBGEZB3/A042MUBSGEZB2
CHTChile (Movistar)Mar 18, 2026+9 daysA042MUBSGEZB3/A042MOWBGEZB3/A042MUBSGEZB2
CHXChileMar 18, 2026+9 daysA042MUBSGEZB3/A042MOWBGEZB3/A042MUBSGEZB2
EBEEcuadorMar 18, 2026+9 daysA042MUBSGEZB3/A042MOWBGEZB3/A042MUBSGEZB2
ECOEcuadorMar 18, 2026+9 daysA042MUBSGEZB3/A042MOWBGEZB3/A042MUBSGEZB2

Download and release notes

samloader download -m SM-A042M -r BVO -v A042MUBSGEZB3/A042MOWOGEZB3/A042MUBSGEZB2

Samsung's release notes and security patch level for this update: SM-A042M / BVO on doc.samsungmobile.com. What each part of the build number means: decode A042MUBSGEZB3.