Galaxy S21 5G
Release G991NKSS8GYC1
KOREA · KTCAndroid 14Built 3/5/2025Release information
The software versions and region covered by this firmware update.
G991NKSS8GYC1G991NOKR8GYC1G991NKOS8GYC1 KOREADownload files
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Open fileKOREA · CSC KTC · 3 carriers in 1 country
CSC is Samsung's region and carrier customization. The networks below are included in this release.
LG U+45006NWIDNW00680LG U+45006NWIDNW00681olleh45008NWIDNW00649olleh45008NWIDNW00650SKTelecom45005NWIDNW01125SKTelecom45005NWIDNW01126