SM-A546B is the Galaxy A54
The letter after the digits is the region: SM-A546B is the international version sold in Australia, and /DS means dual SIM.
For your Galaxy A54
Not sure what’s wrong with it? Diagnostics at Riverwood Plaza are free.
Free tools for your Galaxy A54Check it yourself
Where to find the model number.
Settings → About phone → Model number. Got a different number? Look it up here.
Cracked Galaxy A54? We fix it while you wait.
Screens, batteries and charging ports at Riverwood Plaza. Free diagnostic, no obligation.