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Samsung Galaxy S21 5G (SM-G991U) Android 15 Firmware (G991USQSHHYI1) – USA | SamFrew

Home / Firmware / SM-G991U / CHA

Firmware G991USQSHHYI1

Device Galaxy S21 5G

Model SM-G991U

Region CHA

Country USA

OS Android 15

Release Date 9/3/2025

Upload Date 9/29/2025

PDA G991USQSHHYI1

CSC G991UOYNHHYI1

Changelist 30959686

Size 8369335600 bytes (approx. 7.8 GB)

CHA CSC Breakdown

Network ID

NW01605

Network Name

Verizon Wireless

Network Country

United States of America

Network Bands

LTE 700

Network ID

NW01606

Network Name

CHA TEST

Network Country

Network Bands

any

Network ID

NW01845

Network Name

Verizon Wireless

Network Country

United States of America

Network Bands

LTE 700