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I'm sorry to hear. Unfortunately, it's much you can do on your own if the touch still doesn't work. I suggest that you contact the person that you received this unit from since it's a prototype.
Sir
I Am In Pakistan
Unfotunately Support Center Is Unavailable There
Please Help Me Out
Else It Will Be Useless For Me 
Since you have a prototype, your local support team will not be able to provide you with further information about how you should proceed in this case. You need to contact the person that supplied this prototype to you. Prototypes are not for sale and do not have any offical software, thereby the local support team cannot provide you with help in this matter.