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Samsung Galaxy S21 5G (SM-G991U) Android 15 Firmware (G991USQSIHYL1) – CCT | SamFrew

Home / Firmware / SM-G991U / CCT

Firmware G991USQSIHYL1

Device Galaxy S21 5G

Model SM-G991U

Region CCT

OS Android 15

Release Date 12/5/2025

Upload Date 12/22/2025

PDA G991USQSIHYL1

CSC G991UOYNIHYL1

Changelist 30959686

Size 8370015680 bytes (approx. 7.8 GB)