Factory reset

A factory reset, also known as master reset, is a software restore of an electronic device to its original system state by erasing all of the information stored on the device. A keyboard input button factory reset is used to restore the device to its original manufacturer settings. Doing so will effectively erase all of the data, settings, and applications that were previously on the device. This is often done to fix an issue with a device, but it could also be done to restore the device to its original settings.[1] Such electronic devices include smartphones.

Since a factory reset entails deleting all information stored in the device, it is essentially the same concept as reformatting[1] a hard drive. Pre-installed applications and data on the card's storage card (such as a microSD card) will not be erased. A factory reset effectively destroys all data stored in the unit.

Factory resets can fix many chronic performance issues (i.e. freezing), but it does not remove the device's operating system.[2]

Examples

Factory resets can be achieved in a variety of ways depending on the electronic device. For some devices, this could be done by going into the device's Service Menu. Other devices may require a complete re-installation of the software. The following section lists a few common electronic devices and how they can be reset to factory settings.

Computer factory resets will restore the computer to the computer's original operating system and delete all of the user data stored on the computer. Microsoft's Windows 8 and Windows 10, and Apple's macOS have options for this.

On Android devices, there is a factory data reset option in Settings that will appear to erase all of the device's data and reset all of its settings. This method is typically used when the device has a technical problem that cannot be fixed using other methods, or when the owner wants to remove all their personal data before selling, giving away, returning or disposing of the device. After performing a study, Avast! reported that the data is recoverable using forensics software that is fairly generic and publicly available.[3] The "Factory data reset" option does not affect the Knox Flag. As such, it does not reset the device to its original factory settings and is not a way to return the device to a state compatible with the manufacturer's warranty. Data on the SIM card and the microSD card is not erased.

Many other devices can be restored to factory settings, like televisions, GPS units or tablet computers.

Many electronic devices have a menu with tools and settings called the service menu,[4] which commonly includes a tool that performs a factory reset. This tool is most common in devices with displays, such as television sets and computer monitors. These menus are usually accessed through a sequence of button presses.

See also

References
  1. "hard reset (factory reset; master reset)". whatis.techtarget.com. Retrieved 23 October 2013.
  2. "Guide for Performing Factory Resets on Common Mobile Devices" (PDF). Archived from the original (PDF) on 13 November 2013. Retrieved 23 October 2013.
  3. Jaromír Hořejší (9 July 2014). "Android Forensics, Part 1: How we recovered (supposedly) erased data".
  4. "Service Menu Instructions" (MediaWiki).
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