Galaxy Watch9
Firmware L355FXXS1AZH4
Japan · SBMAndroid 17Built Aug 21, 2026Release information
The software versions and region covered by this firmware update.
L355FXXS1AZH4L355FSJP1AZH4 JapanJapan · CSC SBM · 1 carrier in 1 country
CSC is Samsung's region and carrier customization. The networks below are included in this release.
SoftBank44020NWIDNW01155