Galaxy S21 5G
Release G991BXXSIHYK1
Croatia · CROAndroid 15Built 11/5/2025Release information
The software versions and region covered by this firmware update.
G991BXXSIHYK1G991BOXMIHYK1 CroatiaCroatia · CSC CRO · 2 carriers in 1 country
CSC is Samsung's region and carrier customization. The networks below are included in this release.
HT HR21901NWIDNW00593T-Mobile HR21920NWIDNW00593