He was born in Santiago, the son of Telésforo Cabero del Canto and of Filomena Díaz.
He completed his studies in the Instituto Nacional, and then attended the Universidad de Chile, where he became a lawyer.
He assumed on 26 July, and that same night he formed his cabinet, headed by a very reluctant Juan Esteban Montero as interior minister and Pedro Blanquier, the other key player, as Finance minister.
The speed he demonstrated to get rid of the power earned him the nickname of El Pasador (the relayer), that accompanied him until his death.
After his very brief administration, he was elected Senator for Curicó, Talca, Maule y Linares (1933–1937).