A146MUBSCDZB2 – Galaxy A14 5G firmware

Build A146MUBSCDZB2 is a security update for the Galaxy A14 5G (SM-A146M) on Android 15 (One UI 7). It first appeared on Samsung's servers on Mar 12, 2026 (method) and has reached 31 regions so far. It raises the bootloader bit from 11 to 12: once installed, the device no longer accepts firmware with bit 11 or lower, so a downgrade to A146MUBUBDYL1 is blocked. Samsung still serves this file.

Model
SM-A146M
Android
Android 15
Type
Security
Bootloader bit
12
First released
Mar 12, 2026
Regions
31

Rollout timeline by region

The date each region code (CSC) first received A146MUBSCDZB2, counted from the first release.

CSCRegionReleasedRolloutVersion (PDA/CSC/MODEM)
TPAPanamaMar 12, 2026day 0A146MUBSCDZB2/A146MOWOCDZB2/A146MUBSCDZB2
CGUGuatemala (Claro)Mar 13, 2026+1 dayA146MUBSCDZB2/A146MOWBCDZB2/A146MUBSCDZB2
AROArgentinaMar 13, 2026+1 dayA146MUBSCDZB2/A146MOWOCDZB2/A146MUBSCDZB2
CDRDominican RepublicMar 13, 2026+1 dayA146MUBSCDZB2/A146MOWACDZB2/A146MUBSCDZB2
CHEChile (Entel)Mar 13, 2026+1 dayA146MUBSCDZB2/A146MOWBCDZB2/A146MUBSCDZB2
CHLChile (Claro)Mar 13, 2026+1 dayA146MUBSCDZB2/A146MOWBCDZB2/A146MUBSCDZB2
CHOChileMar 13, 2026+1 dayA146MUBSCDZB2/A146MOWBCDZB2/A146MUBSCDZB2
CHTChile (Movistar)Mar 13, 2026+1 dayA146MUBSCDZB2/A146MOWBCDZB2/A146MUBSCDZB2
CHXChileMar 13, 2026+1 dayA146MUBSCDZB2/A146MOWBCDZB2/A146MUBSCDZB2
COOColombiaMar 13, 2026+1 dayA146MUBSCDZB2/A146MOWBCDZB2/A146MUBSCDZB2
CRCCosta RicaMar 13, 2026+1 dayA146MUBSCDZB2/A146MOWBCDZB2/A146MUBSCDZB2
CTIArgentina (Claro)Mar 13, 2026+1 dayA146MUBSCDZB2/A146MOWOCDZB2/A146MUBSCDZB2
DORDominican RepublicMar 13, 2026+1 dayA146MUBSCDZB2/A146MOWBCDZB2/A146MUBSCDZB2
GLONigeria (Glo)Mar 13, 2026+1 dayA146MUBSCDZB2/A146MOWBCDZB2/A146MUBSCDZB2
GTOGuatemalaMar 13, 2026+1 dayA146MUBSCDZB2/A146MOWOCDZB2/A146MUBSCDZB2
IUSMexico (AT&T)Mar 13, 2026+1 dayA146MUBSCDZB2/A146MOWOCDZB2/A146MUBSCDZB2
MXOMexicoMar 13, 2026+1 dayA146MUBSCDZB2/A146MOWOCDZB2/A146MUBSCDZB2
PEOPeruMar 13, 2026+1 dayA146MUBSCDZB2/A146MOWBCDZB2/A146MUBSCDZB2
PETPeru (Movistar)Mar 13, 2026+1 dayA146MUBSCDZB2/A146MOWBCDZB2/A146MUBSCDZB2
PNTPanamaMar 13, 2026+1 dayA146MUBSCDZB2/A146MOWBCDZB2/A146MUBSCDZB2
PSNArgentina (Personal)Mar 13, 2026+1 dayA146MUBSCDZB2/A146MOWOCDZB2/A146MUBSCDZB2
SAMOceaniaMar 13, 2026+1 dayA146MUBSCDZB2/A146MOWBCDZB2/A146MUBSCDZB2
TCEMexico (Telcel)Mar 13, 2026+1 dayA146MUBSCDZB2/A146MOWOCDZB2/A146MUBSCDZB2
TMMMyanmarMar 13, 2026+1 dayA146MUBSCDZB2/A146MOWOCDZB2/A146MUBSCDZB2
UFNArgentina (Movistar)Mar 13, 2026+1 dayA146MUBSCDZB2/A146MOWOCDZB2/A146MUBSCDZB2
UPOUruguayMar 13, 2026+1 dayA146MUBSCDZB2/A146MOWOCDZB2/A146MUBSCDZB2
ZTABrazil (Claro)Mar 13, 2026+1 dayA146MUBSCDZB2/A146MOWOCDZB2/A146MUBSCDZB2
ZTMBrazil (TIM)Mar 13, 2026+1 dayA146MUBSCDZB2/A146MOWOCDZB2/A146MUBSCDZB2
ZTOBrazilMar 13, 2026+1 dayA146MUBSCDZB2/A146MOWOCDZB2/A146MUBSCDZB2
ZVVBrazil (Vivo)Mar 13, 2026+1 dayA146MUBSCDZB2/A146MOWOCDZB2/A146MUBSCDZB2
UYOUruguayMar 16, 2026+4 daysA146MUBSCDZB2/A146MOWOCDZB2/A146MUBSCDZB2

Download and release notes

samloader download -m SM-A146M -r TPA -v A146MUBSCDZB2/A146MOWOCDZB2/A146MUBSCDZB2

Samsung's release notes and security patch level for this update: SM-A146M / TPA on doc.samsungmobile.com. What each part of the build number means: decode A146MUBSCDZB2.