seu celular estava desligado

your cellphone was turned off

→ seu
phrase Rare #33,713
your cellphone was turned off Depending on context, seu can also mean “his” or “her.” Estava desligado describes a past state; está desligado means “is turned off.”
PO: Tentei ligar, mas seu celular estava desligado.
EN: I tried to call, but your cellphone was turned off.

Por que o seu celular estava desligado?

Why was your cell phone turned off?

Seu celular estava desligado.

Your phone was turned off.

— O Mundo (2004)

O seu celular estava desligado.

Your cell phone was turned off.

— O Mundo (2004)

Por que seu celular estava desligado?

Why was your cell phone turned off?

Seu celular estava desligado?

Was your cell phone turned off?