Firmware G991BXXU9FWK4

Device Galaxy S21 5G

Model SM-G991B

Region ZVV

Country Brazil

OS Android 14

Release Date 11/21/2023

Upload Date 12/22/2023

PDA G991BXXU9FWK4

CSC G991BOWO9FWK4

Changelist 27764024

Size 7967192173 bytes (approx. 7.4 GB)

ZVV CSC Breakdown

Network ID

NW01465

Network Name

VIVO

Network Country

Brazil

Network Bands

GSM 850 / GSM 1800 / UMTS 850 / UMTS 2100 / LTE 700 / LTE 1800 / LTE 2600 / 5G 700 / 5G 1800 / 5G 2300 / 5G 2600 / 5G 3500