SM-A576B is the Galaxy A57
The letter after the digits is the region: SM-A576B is the international version sold in Australia, and /DS means dual SIM.
For your Galaxy A57
Not sure what’s wrong with it? Diagnostics at Riverwood Plaza are free.
Free tools for your Galaxy A57Check it yourself
Where to find the model number.
Settings → About phone → Model number. Got a different number? Look it up here.
Cracked Galaxy A57? We fix it while you wait.
Screens, batteries and charging ports at Riverwood Plaza. Free diagnostic, no obligation.