You can reset any android phone with the help of below mention process. But Make sure you will lost all data permanently after reset the Phone
Switch off the cell phone.
Afterwards press and hold Volume Up + Power button for about 15 seconds, and until you see Android
Then select Recovery menu
Then select “wipe data/factory reset” using Volume Down to scroll option, and press Power button to accept.
Browse to option “Yes-detele all user data”, and confirm that with Power button.
After that press Power button to accept option “reboot system now”.