Firmware G991BXXU7EWCK

Device Galaxy S21 5G

Model SM-G991B

Region ZTA

Country Brazil

OS Android 13

Release Date 4/12/2023

Upload Date 4/20/2023

PDA G991BXXU7EWCK

CSC G991BOWO7EWCK

Changelist 26203421

Size 7510771461 bytes (approx. 7.0 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