`A546EXXSMFZH5` – Galaxy A54 5G firmware

Build A546EXXSMFZH5 is a security update for the Galaxy A54 5G (SM-A546E) on Android 16 (One UI 8). It first appeared on Samsung's servers on Sep 7, 2026 (method) and has reached 80 regions so far. It raises the bootloader bit from 21 to 22: once installed, the device no longer accepts firmware with bit 21 or lower, so a downgrade to A546EXXSLFZG3 is blocked. Samsung still serves this file.

Model: SM-A546E
Android: Android 16
Type: Security
Bootloader bit: 22
First released: Sep 7, 2026
Regions: 80

Rollout timeline by region

The date each region code (CSC) first received A546EXXSMFZH5, counted from the first release.

CSC	Region	Released	Rollout	Version (PDA/CSC/MODEM)
`XID`	Indonesia	Sep 7, 2026	day 0	`A546EXXSMFZH5/A546EOLEMFZH5/A546EXXSMFZH1`
`XME`	Malaysia	Sep 7, 2026	day 0	`A546EXXSMFZH5/A546EOLMMFZH5/A546EXXSMFZH1`
`XNZ`	New Zealand	Sep 7, 2026	day 0	`A546EXXSMFZH5/A546EOLMMFZH5/A546EXXSMFZH1`
`XSA`	Australia	Sep 7, 2026	day 0	`A546EXXSMFZH5/A546EOLMMFZH5/A546EXXSMFZH1`
`XSP`	Singapore	Sep 7, 2026	day 0	`A546EXXSMFZH5/A546EOLMMFZH5/A546EXXSMFZH1`
`XTC`	Philippines	Sep 7, 2026	day 0	`A546EXXSMFZH5/A546EOLMMFZH5/A546EXXSMFZH1`
`XXV`	Vietnam	Sep 7, 2026	day 0	`A546EXXSMFZH5/A546EOLMMFZH5/A546EXXSMFZH1`
`GLB`	Philippines (Globe)	Sep 7, 2026	day 0	`A546EXXSMFZH5/A546EOLMMFZH5/A546EXXSMFZH1`
`MM1`	Singapore (M1)	Sep 7, 2026	day 0	`A546EXXSMFZH5/A546EOLMMFZH5/A546EXXSMFZH1`
`MYM`	Myanmar	Sep 7, 2026	day 0	`A546EXXSMFZH5/A546EOLMMFZH5/A546EXXSMFZH1`
`OPS`	Australia (Optus)	Sep 7, 2026	day 0	`A546EXXSMFZH5/A546EOLMMFZH5/A546EXXSMFZH1`
`SIN`	Singapore (Singtel)	Sep 7, 2026	day 0	`A546EXXSMFZH5/A546EOLMMFZH5/A546EXXSMFZH1`
`STH`	Singapore (StarHub)	Sep 7, 2026	day 0	`A546EXXSMFZH5/A546EOLMMFZH5/A546EXXSMFZH1`
`TEL`	Australia (Telstra)	Sep 7, 2026	day 0	`A546EXXSMFZH5/A546EOLMMFZH5/A546EXXSMFZH1`
`THL`	Thailand	Sep 7, 2026	day 0	`A546EXXSMFZH5/A546EOLMMFZH5/A546EXXSMFZH1`
`BKD`	Bangladesh	Sep 7, 2026	day 0	`A546EXXSMFZH5/A546EODMMFZH3/A546EXXSMFZH1`
`INS`	India	Sep 7, 2026	day 0	`A546EXXSMFZH5/A546EODMMFZH3/A546EXXSMFZH1`
`NPB`	Nepal	Sep 7, 2026	day 0	`A546EXXSMFZH5/A546EODMMFZH3/A546EXXSMFZH1`
`SLK`	Sri Lanka	Sep 7, 2026	day 0	`A546EXXSMFZH5/A546EODMMFZH3/A546EXXSMFZH1`
`ACR`	Ghana	Sep 7, 2026	day 0	`A546EXXSMFZH5/A546EOJMMFZH5/A546EXXSMFZH1`
`AFG`	Afghanistan	Sep 7, 2026	day 0	`A546EXXSMFZH5/A546EOJMMFZH5/A546EXXSMFZH1`
`AFR`	Africa	Sep 7, 2026	day 0	`A546EXXSMFZH5/A546EOJMMFZH5/A546EXXSMFZH1`
`DKR`	Senegal	Sep 7, 2026	day 0	`A546EXXSMFZH5/A546EOJMMFZH5/A546EXXSMFZH1`
`ECT`	Nigeria	Sep 7, 2026	day 0	`A546EXXSMFZH5/A546EOJMMFZH5/A546EXXSMFZH1`
`EGY`	Egypt	Sep 7, 2026	day 0	`A546EXXSMFZH5/A546EOJMMFZH5/A546EXXSMFZH1`
`ILO`	Israel	Sep 7, 2026	day 0	`A546EXXSMFZH5/A546EOJMMFZH5/A546EXXSMFZH1`
`KSA`	Saudi Arabia	Sep 7, 2026	day 0	`A546EXXSMFZH5/A546EOJMMFZH5/A546EXXSMFZH1`
`LYS`	Libya	Sep 7, 2026	day 0	`A546EXXSMFZH5/A546EOJMMFZH5/A546EXXSMFZH1`
`MID`	Middle East	Sep 7, 2026	day 0	`A546EXXSMFZH5/A546EOJMMFZH5/A546EXXSMFZH1`
`MWD`	Morocco	Sep 7, 2026	day 0	`A546EXXSMFZH5/A546EOJMMFZH5/A546EXXSMFZH1`
`PKD`	Pakistan	Sep 7, 2026	day 0	`A546EXXSMFZH5/A546EOJMMFZH5/A546EXXSMFZH1`
`TUN`	Tunisia	Sep 7, 2026	day 0	`A546EXXSMFZH5/A546EOJMMFZH5/A546EXXSMFZH1`
`TUR`	Turkey	Sep 7, 2026	day 0	`A546EXXSMFZH5/A546EOJMMFZH5/A546EXXSMFZH1`
`XFA`	South Africa	Sep 7, 2026	day 0	`A546EXXSMFZH5/A546EOJMMFZH5/A546EXXSMFZH1`
`XFE`	South Africa	Sep 7, 2026	day 0	`A546EXXSMFZH5/A546EOJMMFZH5/A546EXXSMFZH1`
`XFV`	South Africa (Vodacom)	Sep 7, 2026	day 0	`A546EXXSMFZH5/A546EOJMMFZH5/A546EXXSMFZH1`
`XSG`	United Arab Emirates	Sep 7, 2026	day 0	`A546EXXSMFZH5/A546EOJMMFZH5/A546EXXSMFZH1`
`CAU`	Caucasus	Sep 7, 2026	day 0	`A546EXXSMFZH5/A546EOXEMFZH5/A546EXXSMFZH1`
`SEK`	Ukraine	Sep 7, 2026	day 0	`A546EXXSMFZH5/A546EOXEMFZH5/A546EXXSMFZH1`
`SKZ`	Kazakhstan	Sep 7, 2026	day 0	`A546EXXSMFZH5/A546EOXEMFZH5/A546EXXSMFZH1`
`ARO`	Argentina	Sep 9, 2026	+2 days	`A546EXXSMFZH5/A546EOWOMFZH5/A546EXXSMFZH1`
`BVO`	Bolivia	Sep 9, 2026	+2 days	`A546EXXSMFZH5/A546EOWOMFZH5/A546EXXSMFZH1`
`CTI`	Argentina (Claro)	Sep 9, 2026	+2 days	`A546EXXSMFZH5/A546EOWOMFZH5/A546EXXSMFZH1`
`GTO`	Guatemala	Sep 9, 2026	+2 days	`A546EXXSMFZH5/A546EOWOMFZH5/A546EXXSMFZH1`
`PSN`	Argentina (Personal)	Sep 9, 2026	+2 days	`A546EXXSMFZH5/A546EOWOMFZH5/A546EXXSMFZH1`
`TGP`	Paraguay	Sep 9, 2026	+2 days	`A546EXXSMFZH5/A546EOWOMFZH5/A546EXXSMFZH1`
`TPA`	Panama	Sep 9, 2026	+2 days	`A546EXXSMFZH5/A546EOWOMFZH5/A546EXXSMFZH1`
`UFN`	Argentina (Movistar)	Sep 9, 2026	+2 days	`A546EXXSMFZH5/A546EOWOMFZH5/A546EXXSMFZH1`
`UPO`	Uruguay	Sep 9, 2026	+2 days	`A546EXXSMFZH5/A546EOWOMFZH5/A546EXXSMFZH1`
`UYO`	Uruguay	Sep 9, 2026	+2 days	`A546EXXSMFZH5/A546EOWOMFZH5/A546EXXSMFZH1`
`ZTA`	Brazil (Claro)	Sep 9, 2026	+2 days	`A546EXXSMFZH5/A546EOWOMFZH5/A546EXXSMFZH1`
`ZTM`	Brazil (TIM)	Sep 9, 2026	+2 days	`A546EXXSMFZH5/A546EOWOMFZH5/A546EXXSMFZH1`
`ZTO`	Brazil	Sep 9, 2026	+2 days	`A546EXXSMFZH5/A546EOWOMFZH5/A546EXXSMFZH1`
`ZVV`	Brazil (Vivo)	Sep 9, 2026	+2 days	`A546EXXSMFZH5/A546EOWOMFZH5/A546EXXSMFZH1`
`CDR`	Dominican Republic	Sep 9, 2026	+2 days	`A546EXXSMFZH5/A546EOWBMFZH5/A546EXXSMFZH1`
`CGU`	Guatemala (Claro)	Sep 9, 2026	+2 days	`A546EXXSMFZH5/A546EOWBMFZH5/A546EXXSMFZH1`
`COM`	Colombia (Claro)	Sep 9, 2026	+2 days	`A546EXXSMFZH5/A546EOWBMFZH5/A546EXXSMFZH1`
`CRC`	Costa Rica	Sep 9, 2026	+2 days	`A546EXXSMFZH5/A546EOWBMFZH5/A546EXXSMFZH1`
`DOR`	Dominican Republic	Sep 9, 2026	+2 days	`A546EXXSMFZH5/A546EOWBMFZH5/A546EXXSMFZH1`
`GLO`	Nigeria (Glo)	Sep 9, 2026	+2 days	`A546EXXSMFZH5/A546EOWBMFZH5/A546EXXSMFZH1`
`NBS`	Latin America (open market)	Sep 9, 2026	+2 days	`A546EXXSMFZH5/A546EOWBMFZH5/A546EXXSMFZH1`
`PGU`	Guatemala	Sep 9, 2026	+2 days	`A546EXXSMFZH5/A546EOWBMFZH5/A546EXXSMFZH1`
`EBE`	Ecuador	Sep 10, 2026	+3 days	`A546EXXSMFZH5/A546EOWBMFZH5/A546EXXSMFZH1`
`ECO`	Ecuador	Sep 10, 2026	+3 days	`A546EXXSMFZH5/A546EOWBMFZH5/A546EXXSMFZH1`
`IUS`	Mexico (AT&T)	Sep 10, 2026	+3 days	`A546EXXSMFZH5/A546EOWOMFZH5/A546EXXSMFZH1`
`MXO`	Mexico	Sep 10, 2026	+3 days	`A546EXXSMFZH5/A546EOWOMFZH5/A546EXXSMFZH1`
`TCE`	Mexico (Telcel)	Sep 10, 2026	+3 days	`A546EXXSMFZH5/A546EOWOMFZH5/A546EXXSMFZH1`
`TMM`	Myanmar	Sep 10, 2026	+3 days	`A546EXXSMFZH5/A546EOWOMFZH5/A546EXXSMFZH1`
`PEO`	Peru	Sep 10, 2026	+3 days	`A546EXXSMFZH5/A546EOWBMFZH5/A546EXXSMFZH1`
`PET`	Peru (Movistar)	Sep 10, 2026	+3 days	`A546EXXSMFZH5/A546EOWBMFZH5/A546EXXSMFZH1`
`PNT`	Panama	Sep 10, 2026	+3 days	`A546EXXSMFZH5/A546EOWBMFZH5/A546EXXSMFZH1`
`SAM`	Oceania	Sep 10, 2026	+3 days	`A546EXXSMFZH5/A546EOWBMFZH5/A546EXXSMFZH1`
`COB`	Colombia (Movistar)	Sep 14, 2026	+7 days	`A546EXXSMFZH5/A546EOWBMFZH5/A546EXXSMFZH1`
`COL`	Colombia	Sep 14, 2026	+7 days	`A546EXXSMFZH5/A546EOWBMFZH5/A546EXXSMFZH1`
`COO`	Colombia	Sep 14, 2026	+7 days	`A546EXXSMFZH5/A546EOWBMFZH5/A546EXXSMFZH1`
`CHE`	Chile (Entel)	Sep 22, 2026	+15 days	`A546EXXSMFZH5/A546EOWBMFZH5/A546EXXSMFZH1`
`CHL`	Chile (Claro)	Sep 22, 2026	+15 days	`A546EXXSMFZH5/A546EOWBMFZH5/A546EXXSMFZH1`
`CHO`	Chile	Sep 22, 2026	+15 days	`A546EXXSMFZH5/A546EOWBMFZH5/A546EXXSMFZH1`
`CHT`	Chile (Movistar)	Sep 22, 2026	+15 days	`A546EXXSMFZH5/A546EOWBMFZH5/A546EXXSMFZH1`
`CHX`	Chile	Sep 22, 2026	+15 days	`A546EXXSMFZH5/A546EOWBMFZH5/A546EXXSMFZH1`

Download and release notes

samloader download -m SM-A546E -r INS -v A546EXXSMFZH5/A546EODMMFZH3/A546EXXSMFZH1

Samsung's release notes and security patch level for this update: SM-A546E / INS on doc.samsungmobile.com. What each part of the build number means: decode A546EXXSMFZH5.

A546EXXSMFZH5 – Galaxy A54 5G firmware

Rollout timeline by region

Download and release notes

`A546EXXSMFZH5` – Galaxy A54 5G firmware