How to restore factory settings on Android phone?

You can view the following methods:

1. Restore all settings and clear all data:

Enter Settings--System Management/More Settings--Backup and Reset/factory reset--restore all settings and clear all data.

2. Enter recovery mode, choose to clear all data, and then restart the device. ?

You can click on this link to view the graphic description

How to enter Recovery mode:

1. Folding screen: unfold the operation in the shutdown state, and at the same time Press and hold the "Power Button" and "Volume Up Button" for about 5 seconds to enter FASTBOOT mode, press the Volume Button to select "Enter RECOVERY", and press the Power Button to confirm entry.

2. Models launched after September 2017: Press and hold the "power button" and "volume up button" at the same time for about 5 seconds in the off state to enter the FASTBOOT mode, press the volume button to select "Enter RECOVERY" ”, press the power button to confirm entry?.

3. NEX?3/NEX?3S: In the power-off state, press and hold the top round button for about 1.5 seconds, then press and hold the volume up button to enter FASTBOOT mode, press the volume button to select "Enter RECOVERY"?, and press Press the power button to confirm entry.

4. For models launched before September 2017: Press and hold the "power button" and "volume up button" at the same time for about 5 seconds in the off state to enter RECOVERY mode.

Note: Restoring all settings will not delete any data or media files. It will only restore all settings of the phone (such as set wallpapers, unlocking styles, WiFi, default startup programs, desktop layout, etc.), and some Third-party application accounts need to be logged in again. Please make sure it does not affect the use of the software before proceeding. For data security, it is recommended to back up mobile phone data in advance before operation. (You can enter Cloud Service - Device Cloud Backup - Backup Data Type - System Data - Return - Backup Now to back up some system settings and desktop layout; Cloud Service - Data Synchronization - Turn on WLAN, Bluetooth, etc. Data is synchronized to the cloud service)

"Clear all data" will restore the phone to its initial state and delete all data in the phone's system space, including accounts, system and application data and settings, and installed applications. Please back up important data on your mobile phone before operation.