Firmware G991BXXS3BULC

Device Galaxy S21 5G

Model SM-G991B

Region ZTA

Country Brazil

OS Android 12

Release Date 12/21/2021

Upload Date 1/8/2022

PDA G991BXXS3BULC

CSC G991BOWO3BUKG

Changelist 22937332

Size 6889440624 bytes (approx. 6.4 GB)

ZTA CSC Breakdown

Network ID

NW00243

Network Name

Claro

Network Country

Brazil

Network Bands

GSM 900 / GSM 1800 / UMTS 850 / UMTS 2100 / LTE 700 / LTE 1800 / LTE 2600 / 5G 2300 / 5G 2600 / 5G 3500