Home / Firmware / SM-G998B / COB
Device Galaxy S21 Ultra 5G
Model SM-G998B
Region COB
OS Android 15
Release Date 8/4/2025
Upload Date 8/28/2025
PDA G998BXXSGHYH1
CSC G998BOWOGHYH1
Changelist 30959686
Size 9724992544 bytes (approx. 9.1 GB)