Firmware G991BXXU4BVB1

Device Galaxy S21 5G

Model SM-G991B

Region SIM

Country Slovenia

OS Android 12

Release Date 2/3/2022

Upload Date 3/3/2022

PDA G991BXXU4BVB1

CSC G991BOXM4BVB1

Changelist 23365054

Size 7683902395 bytes (approx. 7.2 GB)

SIM CSC Breakdown

Network ID

NW00048

Network Name

A1 SI

Network Country

Slovenia

Network Bands

GSM 900 / GSM 1800 / UMTS 900 / UMTS 2100 / LTE 800 / LTE 1800 / LTE 2100 / LTE 2600 / 5G 700 / 5G 3500