Galaxy S21 5G
Release G991BXXSHHYJ1
UK · BTBAndroid 15Built 10/2/2025Release information
The software versions and region covered by this firmware update.
G991BXXSHHYJ1G991BOXMHHYJ1 UKUK · CSC BTB · 2 carriers in 1 country
CSC is Samsung's region and carrier customization. The networks below are included in this release.
BT OnePhoneMVNO23408NWIDNW00172EE23430NWIDNW00249EE23430NWIDNW00176