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Firmware M556BXXS4BYH2

Device Galaxy M55 5G

Model SM-M556B

Region BNG

Country Bangladesh

OS Android 15

Release Date 8/1/2025

Upload Date 8/18/2025

PDA M556BXXS4BYH2

CSC M556BODM4BYH2

Changelist 31154426

Size 8560869744 bytes (approx. 8.0 GB)

BNG CSC Breakdown

Network ID

NW00542

Network Name

Grameenphone

Network Country

Bangladesh

Network Bands

GSM 900 / GSM 1800 / UMTS 2100 / LTE 1800

Network ID

NW00183

Network Name

Banglalink

Network Country

Bangladesh

Network Bands

GSM 900 / GSM 1800 / UMTS 2100 / LTE 1800 / LTE 2100 / TD-LTE 2300

Network ID

NW01265

Network Name

Teletalk

Network Country

Bangladesh

Network Bands

GSM 900 / UMTS 2100 / LTE 1800

Network ID

NW01065

Network Name

Robi

Network Country

Bangladesh

Network Bands

GSM 900 / GSM 1800 / UMTS 2100 / LTE 900 / LTE 1800 / LTE 2100

Network ID

NW00065

Network Name

Airtel

Network Country

Bangladesh

Network Bands

GSM 900 / GSM 1800 / UMTS 2100