Home / Firmware / SM-G991U / USC
Device Galaxy S21 5G
Model SM-G991U
Region USC
OS Android 15
Release Date 9/3/2025
Upload Date 10/6/2025
PDA G991USQSHHYI1
CSC G991UOYNHHYI1
Changelist 30959686
Size 8403651552 bytes (approx. 7.8 GB)