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Samsung Galaxy S21 5G (SM-G991U) Android 15 Firmware (G991USQSJHZB1) – DSH | SamFrew

Home / Firmware / SM-G991U / DSH

Firmware G991USQSJHZB1

Device Galaxy S21 5G

Model SM-G991U

Region DSH

OS Android 15

Release Date 2/24/2026

Upload Date 3/20/2026

PDA G991USQSJHZB1

CSC G991UOYNJHZB1

Changelist 30959686

Size 8402812336 bytes (approx. 7.8 GB)