L340ZCU1AZJ3 – Galaxy Watch9 firmware

Build L340ZCU1AZJ3 is a feature update for the Galaxy Watch9 (SM-L340) on Android 17 (One UI 9). It first appeared on Samsung's servers on – (method) and has reached 0 regions so far. It keeps bootloader bit 1, so downgrading to the previous build L340XXU1AZH2 is still possible. Samsung still serves this file.

Model
SM-L340
Android
Android 17
Type
Feature
Bootloader bit
1
First released
–
Regions
0

Rollout timeline by region

The date each region code (CSC) first received L340ZCU1AZJ3, counted from the first release.

CSCRegionReleasedRolloutVersion (PDA/CSC/MODEM)

Download and release notes

samloader download -m SM-L340 -r EUX -v L340ZCU1AZJ3

Samsung's release notes and security patch level for this update: SM-L340 / EUX on doc.samsungmobile.com. What each part of the build number means: decode L340ZCU1AZJ3.