Home / Firmware / SM-G991B / SLK
Device Galaxy S21 5G
Model SM-G991B
Region SLK
Country Sri Lanka
OS Android 15
Release Date 4/15/2025
Upload Date 5/8/2025
PDA G991BXXUEHYD5
CSC G991BOXMEHYD5
Changelist 30959686
Size 9061632112 bytes (approx. 8.4 GB)