Firmware G991BXXS9FWKB

Device Galaxy S21 5G

Model SM-G991B

Region O2U

Country UNITED KINGDOM

OS Android 14

Release Date 11/30/2023

Upload Date 12/21/2023

PDA G991BXXS9FWKB

CSC G991BOXM9FWK2

Changelist 27764024

Size 8229565297 bytes (approx. 7.7 GB)

O2U CSC Breakdown

Network ID

NW00928

Network Name

O2 Pay Monthly

Network Country

United Kingdom

Network Bands

GSM 900 / UMTS 900 / LTE 800 / LTE 900 / LTE 1800 / LTE 2100 / TD-LTE 2300 / 5G 700 / 5G 3500

Network ID

NW00886

Network Name

O2 Pay & Go

Network Country

United Kingdom

Network Bands

GSM 900 / UMTS 900 / LTE 800 / LTE 900 / LTE 1800 / LTE 2100 / TD-LTE 2300 / 5G 700 / 5G 3500

Network ID

NW02107

Network Name

O2 Testbed

Network Country

United Kingdom

Network Bands

GSM 900 / UMTS 900 / LTE 800 / LTE 900 / LTE 1800 / LTE 2100 / TD-LTE 2300 / 5G 700 / 5G 3500