Galaxy Watch9
Release L3550ZCS1AZH4
China · CHCAndroid 17Built 8/21/2026Release information
The software versions and region covered by this firmware update.
L3550ZCS1AZH4L3550CHC1AZH4 ChinaDownload files
Choose a file to see its details and download options.
Explore file information, available TAR files, and download options in Samfrew Files.
Open fileChina · CSC CHC · 13 carriers in 3 countries
CSC is Samsung's region and carrier customization. The networks below are included in this release.
China Broadnet46015NWIDNW02147China Mobile46000NWIDNW00109China Mobile46002NWIDNW00109China Mobile46007NWIDNW00109China Mobile46008NWIDNW00109China Telecom46003NWIDNW00041China Telecom46011NWIDNW00041China Unicom46001NWIDNW00042China Unicom46009NWIDNW00042
China UnicomMVNO45407NWIDNW01378China UnicomMVNO45407NWIDNW01910China UnicomMVNO45407NWIDNW01911CTExcelMVNO45431NWIDNW00368CTExcelMVNO45431NWIDNW02299
China Telecom45502NWIDNW01665China Telecom45502NWIDNW01933China Telecom45507NWIDNW01665