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Firmware M556BXXU4AYB4

Device Galaxy M55 5G

Model SM-M556B

Region ZTO

Country  Brazil

OS Android 14

Release Date 2/19/2025

Upload Date 2/27/2025

PDA M556BXXU4AYB4

CSC M556BOWO4AYB4

Changelist 28566553

Size 7452272400 bytes (approx. 6.9 GB)

ZTO CSC Breakdown

Network ID
NW01299
Network Name
TIM
Network Country
 Brazil
Network Bands
GSM 900 / GSM 1800 / UMTS 850 / UMTS 900 / UMTS 2100 / LTE 700 / LTE 1800 / LTE 2100 / LTE 2600 / 5G 700 / 5G 1800 / 5G 2300 / 5G 2600 / 5G 3500
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
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
Network ID
NW00901
Network Name
Oi
Network Country
 Brazil
Network Bands
GSM 1800 / UMTS 2100
Network ID
NW01087
Network Name
Sercomtel
Network Country
 Brazil
Network Bands
GSM 900 / GSM 1800 / UMTS 850
Network ID
NW02251
Network Name
Algar
Network Country
 Brazil
Network Bands
GSM 900 / GSM 1800 / UMTS 2100 / LTE 700 / LTE 1800 / 5G 2300
Network ID
NW00855
Network Name
Nextel
Network Country
 Brazil
Network Bands
UMTS 2100 / LTE 1800 / LTE 2100
Network ID
NW01017
Network Name
Porto Conecta
Network Country
 Brazil
Network Bands
MVNO
Network ID
NW01587
Network Name
Surf Telecom
Network Country
 Brazil
Network Bands
MVNO
Network ID
NW02165
Network Name
Arqia
Network Country
 Brazil
Network Bands
MVNO
Network ID
NW02174
Network Name
Americanet
Network ID
NW02266
Network Name
UNIFIQUE
Network Country
 Brazil
Network Bands
5G 3500
Network ID
NW02234
Network Name
Brisanet