A546USQUNGZJ6 – Galaxy A54 5G firmware

Build A546USQUNGZJ6 is a feature update for the Galaxy A54 5G (SM-A546U) on Android 17 (One UI 9). It first appeared on Samsung's servers on Nov 2, 2026 (method) and has reached 5 regions so far. It keeps bootloader bit 23, so downgrading to the previous build A546USQSNFZJ2 is still possible. Samsung still serves this file.

Model
SM-A546U
Android
Android 17
Type
Feature
Bootloader bit
23
First released
Nov 2, 2026
Regions
5

Not yet released in 3 regions that are still on an older build: CCT, DSA, DSH.

Rollout timeline by region

The date each region code (CSC) first received A546USQUNGZJ6, counted from the first release.

CSCRegionReleasedRolloutVersion (PDA/CSC/MODEM)
AIOUSA (Cricket)Nov 2, 2026day 0A546USQUNGZJ6/A546UOYNNGZJ6/A546USQUNGZJ6
ATTUSA (AT&T)Nov 2, 2026day 0A546USQUNGZJ6/A546UOYNNGZJ6/A546USQUNGZJ6
TMBUSA (T-Mobile)Nov 2, 2026day 0A546USQUNGZJ6/A546UOYNNGZJ6/A546USQUNGZJ6
TMKUSA (MetroPCS)Nov 2, 2026day 0A546USQUNGZJ6/A546UOYNNGZJ6/A546USQUNGZJ6
USCUSA (US Cellular)Nov 5, 2026+3 daysA546USQUNGZJ6/A546UOYNNGZJ6/A546USQUNGZJ6

Download and release notes

samloader download -m SM-A546U -r AIO -v A546USQUNGZJ6/A546UOYNNGZJ6/A546USQUNGZJ6

Samsung's release notes and security patch level for this update: SM-A546U / AIO on doc.samsungmobile.com. What each part of the build number means: decode A546USQUNGZJ6.