When the phone needs to be sold and needs to wipe personal data or encounter equipment failures, virus attacks, software crashes, etc., restoring the factory settings is a good solution. What does a factory reset do? Doing so will delete all data, settings, and applications that the user has added on the device. How to Recover Lost Data, Photos, Contacts from Android after Factory Reset What is Factory Reset?įactory reset is the restoration of an electronic device to its original state set by the manufacturer at the factory, also known as master reset or hard reset.