Galaxy S21 5G
Release G991BXXS3BULC
CZECH · TMZAndroid 12Built 12/21/2021Release information
The software versions and region covered by this firmware update.
G991BXXS3BULCG991BOXM3BUKG CZECHCZECH · CSC TMZ · 1 carrier in 1 country
CSC is Samsung's region and carrier customization. The networks below are included in this release.
T-Mobile23001NWIDNW01335