[1] Since a factory reset entails deleting all information stored in the device, it is essentially the same concept as reformatting[1] a hard drive.
[citation needed] Factory resets can fix many chronic performance issues (i.e. freezing), but it does not remove the device's operating system.
[2] Factory resets can also be used to prepare a device for sale, refurbishment, disposal, recycling, donation or other transfers of ownership by removing personal data and settings associated with the previous owner.
If the user does not recall the Google account information, alternative methods such as FRP bypass are utilized to unlock the Android device.
[citation needed] Many other devices can be restored to factory settings, like televisions, GPS units or tablet computers.