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Samsung Galaxy S24 (SM-S921U) Android 15 Firmware (S921USQS4BYG2) – ATT | SamFrew

Home / Firmware / SM-S921U / ATT

Firmware S921USQS4BYG2

Device Galaxy S24

Model SM-S921U

Region ATT

OS Android 15

Release Date 7/29/2025

Upload Date 8/13/2025

PDA S921USQS4BYG2

CSC S921UOYN4BYG2

Changelist 30959686

Size 13101700400 bytes (approx. 12.2 GB)