How do I carry out Factory Reset?

Please follow the below steps:

1. Tap on the ■ button at the upper left corner of the Home Screen.
2. Tap on the "Settings" and then tap "Reset" on the screen that appears.
3. Tap on the "Restore factory settings".

NOTE: Carrying out "Factory Reset" will have the following effects:
●The translation history will be deleted.
●You will lose the record of all the functions you have used so far.
●You will have to reconnect to your Wi-Fi