factory reset

Translations
сброс до заводских настроек
He had to do a factory reset on his phone.
Ему пришлось сделать сброс до заводских настроек на его телефоне.
Definitions
A factory reset is the process of restoring a device, such as a smartphone, computer, or other electronic equipment, to its original system state by erasing all user data, settings, and installed applications, effectively returning it to the condition it was in when it left the manufacturer.
Words
factory

noun
заводской
reset

noun
сброс