How can I restore my Innjoo 0ne 3G HD to normal?

[AC Question]

I guess I almost 'bricked' my phone, since I tried to root it and it kind of failed.Now I can't get anywhere with it as almost all applications have failed.I cannot type on it (just getting the voice imput prompt and no keyboard), I cannot use the touch pads at the bottom or go to main menu.Only 10 apps are available from the app manager. Kindly help. Thank you