It will remove all the data ,contacts and apps that you installed
Power off mobile completely.
Press and hold Volume Up, Volume Down And Power keys together
When android logo come press volume Up
Select Wipe Data/ Factory Reset with volume down key and press volume up to enter
Select delete all data with volume down and enter with volume up
Reboot mobile and save settings.
lenovo A369i Restore Factory Hard Reset Format Phone.So lets start the lenovo A369i Restore Factory, lenovo A369i Hard Reset.Turn Off the mobile phone for few mints.lenovo A369i Remove Pattern Lock.
Restore Hard reset will set your phone in origional factorry settings. It will remove all the data and apps that you installed. Your contacts will be removed and you have to add them again.