any possibility..even if i have to change the whole hardware.just dont want to change the laptop coz i got it with great diffculty in my country.?????
Even if they made an i7 version of your laptop, where would you get the board from? If you somehow know which factory produces the mobo, maybe you could get it from there directly (though I doubt they'd sell you one).
Maybe you could buy one off as second hand which has some other defect on the laptop (one which doesn't have a defect on the motherboard) and get the innards. Though I wouldn't recommend going through such great lengths as you have no guarantee on the quality or state of the parts when getting 2nd hand.
Laptop motherboards are made usually for one specific case, and chances are slim that you could find a board with the same layout that would fit in your current case.