WARNING! By factory resetting your phone, all your personal data stored on the device’s internal memory will be removed, including contacts, media files, applications, downloaded content, ringtones etc. Furthermore, all settings will be restored to factory values. However, data on the SIM / SD cards will not be removed.

NOTE: Before you factory reset your device, you can visit this thread for instructions on how you can back up and restore data.

Factory Reset From Settings:

  1. Tap “Apps” on the home screen
  2. Access “Settings”
  3. Tap “Backup & reset” > “Factory data reset”
  4. Read the “Warning” pop-up and, when ready, tap “Reset phone”
  5. If your phone is protected by a lock screen, enter your PIN / password / pattern
  6. Tap “Continue”
  7. Tap “Erase everything” to confirm. After the reset is complete, your phone will perform a restart

Factory Reset via Android System Recovery:

NOTE: If your phone crashes, freezes, or otherwise you are unable to perform a factory reset from the settings menu, alternatively you can reset the phone by performing a combination of button presses.

  1. First, make sure the phone is turned off
  2. Next, press and hold “Volume Up” and “Power” at the same time
  3. When the “Android” image appears, release the buttons and wait to gain access to the Recovery menu
  4. Once in the “Android System Recovery” menu, press “Volume Down” repeatedly to navigate to and highlight “wipe data / factory reset”
  5. Pressing “Power” will select the highlighted option
  6. Next, use “Volume down” to highlight “Yes – delete all user data”
  7. Press “Power” to select the option and wait for the phone to reset
  8. After the phone has been reset “Reboot system now” will be highlighted
  9. Press “Power” one last time to confirm and reboot your device

Check for Software Updates:

NOTE: After you factory reset your device, it’s recommended to check if new software updates are available. To do this:

  1. Tap “Apps” on the home screen
  2. Go to “Settings”
  3. Scroll down to “System”
  4. Tap “About phone” > “System update”
  5. Check for updates and, if necessary, follow the on-screen prompts to download and install any available software packages (NOTE: After the process is complete, a reboot may be required)

See More: ZTE Blade V Plus: Factory Reset via Settings / Recovery; Check for Updates