Home / Firmware / SM-G991U / CCT

Firmware G991USQSJHZB1

Device Galaxy S21 5G

Model SM-G991U

Region CCT

Country USA

OS Android 15

Release Date 2/24/2026

Upload Date 3/19/2026

PDA G991USQSJHZB1

CSC G991UOYNJHZB1

Changelist 30959686

Size 8372460480 bytes (approx. 7.8 GB)

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CCT CSC Breakdown

Network ID

NW00282

Network Name

Verizon Wireless

Network Country

United States of America

Network Bands

LTE 700

Network ID

NW00283

Network Name

Comcast Roaming

Network Country

Netherlands (Kingdom of the Netherlands)

Network Bands

GSM 900 / LTE 800 / LTE 1800 / LTE 2100 / LTE 2600 / 5G 1800

Network ID

NW00265

Network Name

CCT TEST

Network Country

Network Bands

any

Network ID

NW01843

Network Name

Verizon Wireless

Network Country

United States of America

Network Bands

LTE 700