Home / Firmware / SM-A556S / SKC

Firmware A556SKSU4BYD9

Device Galaxy A55 5G

Model SM-A556S

Region SKC

Country KOREA

OS Android 15

Release Date 4/23/2025

Upload Date 5/7/2025

PDA A556SKSU4BYD9

CSC A556SSKC4BYD9

Changelist 31154426

Size 8446193552 bytes (approx. 7.9 GB)

SKC CSC Breakdown

Network ID

NW01125

Network Name

SK Telecom

Network Country

South Korea

Network Bands

UMTS 2100 / LTE 850 / LTE 1800 / LTE 2100 / LTE 2600 / 5G 3500 / 5G 28000

Network ID

NW01126

Network Name

SK Telecom Roaming

Network Country

South Korea

Network Bands

UMTS 2100 / LTE 850 / LTE 1800 / LTE 2100 / LTE 2600 / 5G 3500 / 5G 28000

Network ID

NW00680

Network Name

LG U+

Network Country

South Korea

Network Bands

LTE 850 / LTE 2100 / LTE 2600 / 5G 3500

Network ID

NW00681

Network Name

LG U+ Roaming

Network Country

South Korea

Network Bands

LTE 850 / LTE 2100 / LTE 2600 / 5G 3500

Network ID

NW00649

Network Name

Network Country

South Korea

Network Bands

UMTS 2100 / LTE 900 / LTE 1800 / LTE 2100

Network ID

NW00650

Network Name

KT Roaming

Network Country

South Korea

Network Bands

UMTS 2100 / LTE 900 / LTE 1800 / LTE 2100