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Samsung Galaxy Z Flip4 (SM-F721U) Android 16 Firmware (F721USQS9IZC1) – ATT | SamFrew

Home / Firmware / SM-F721U / ATT

Firmware F721USQS9IZC1

Device Galaxy Z Flip4

Model SM-F721U

Region ATT

OS Android 16

Release Date 3/9/2026

Upload Date 3/30/2026

PDA F721USQS9IZC1

CSC F721UOYN9IZC1

Changelist 31998945

Size 9859042896 bytes (approx. 9.2 GB)