Home / Firmware / SM-G998U / ATT
Device Galaxy S21 Ultra 5G
Model SM-G998U
Region ATT
OS Android 15
Release Date 12/5/2025
Upload Date 12/18/2025
PDA G998USQSIHYL1
CSC G998UOYNIHYL1
Changelist 30959686
Size 8708582544 bytes (approx. 8.1 GB)
