A546BXXUNGZJ5 – Galaxy A54 5G firmware

Build A546BXXUNGZJ5 is a feature update for the Galaxy A54 5G (SM-A546B) on Android 17 (One UI 9). It first appeared on Samsung's servers on Nov 1, 2026 (method) and has reached 18 regions so far. It keeps bootloader bit 23, so downgrading to the previous build A546BXXSNFZJ3 is still possible. Samsung still serves this file.

Model
SM-A546B
Android
Android 17
Type
Feature
Bootloader bit
23
First released
Nov 1, 2026
Regions
18

Rollout timeline by region

The date each region code (CSC) first received A546BXXUNGZJ5, counted from the first release.

CSCRegionReleasedRolloutVersion (PDA/CSC/MODEM)
BOGFrance (Bouygues)Nov 1, 2026day 0A546BXXUNGZJ5/A546BOXMNGZJ5/A546BXXUNGZJ5
BTBUnited Kingdom (BT)Nov 1, 2026day 0A546BXXUNGZJ5/A546BOXMNGZJ5/A546BXXUNGZJ5
EUXEurope (Multi-CSC)Nov 1, 2026day 0A546BXXUNGZJ5/A546BOXMNGZJ5/A546BXXUNGZJ5
EUYEurope (Multi-CSC)Nov 1, 2026day 0A546BXXUNGZJ5/A546BOXMNGZJ5/A546BXXUNGZJ5
EVRUnited Kingdom (EE)Nov 1, 2026day 0A546BXXUNGZJ5/A546BOXMNGZJ5/A546BXXUNGZJ5
MEOPortugal (MEO)Nov 1, 2026day 0A546BXXUNGZJ5/A546BOXMNGZJ5/A546BXXUNGZJ5
MOBAustria (A1)Nov 1, 2026day 0A546BXXUNGZJ5/A546BOXMNGZJ5/A546BXXUNGZJ5
MOTSlovenia (Telekom)Nov 1, 2026day 0A546BXXUNGZJ5/A546BOXMNGZJ5/A546BXXUNGZJ5
MSRSerbiaNov 1, 2026day 0A546BXXUNGZJ5/A546BOXMNGZJ5/A546BXXUNGZJ5
O2CCzech Republic (O2)Nov 1, 2026day 0A546BXXUNGZJ5/A546BOXMNGZJ5/A546BXXUNGZJ5
PLSPoland (Plus)Nov 1, 2026day 0A546BXXUNGZJ5/A546BOXMNGZJ5/A546BXXUNGZJ5
PRTPoland (Play)Nov 1, 2026day 0A546BXXUNGZJ5/A546BOXMNGZJ5/A546BXXUNGZJ5
SFRFrance (SFR)Nov 1, 2026day 0A546BXXUNGZJ5/A546BOXMNGZJ5/A546BXXUNGZJ5
SIMSlovenia (A1)Nov 1, 2026day 0A546BXXUNGZJ5/A546BOXMNGZJ5/A546BXXUNGZJ5
SWCSwitzerlandNov 1, 2026day 0A546BXXUNGZJ5/A546BOXMNGZJ5/A546BXXUNGZJ5
TIMItaly (TIM)Nov 1, 2026day 0A546BXXUNGZJ5/A546BOXMNGZJ5/A546BXXUNGZJ5
TOPSerbia/MontenegroNov 1, 2026day 0A546BXXUNGZJ5/A546BOXMNGZJ5/A546BXXUNGZJ5
VIPCroatia (A1)Nov 1, 2026day 0A546BXXUNGZJ5/A546BOXMNGZJ5/A546BXXUNGZJ5

Download and release notes

samloader download -m SM-A546B -r EUX -v A546BXXUNGZJ5/A546BOXMNGZJ5/A546BXXUNGZJ5

Samsung's release notes and security patch level for this update: SM-A546B / EUX on doc.samsungmobile.com. What each part of the build number means: decode A546BXXUNGZJ5.