Hi !
thanks for your information , I thought just to buy a wi-fy N usb adapter because I'am having 3 years warranty for my laptop.The sellers who sold me this lap, says that they wont replace Network cards.
So I have to do it my own risk.I dont want to hassle for this. If I open the cover I will lose my warranty.
I think not yet one year pass from 3 years.International warranty......
So better to use a usb....No risk at all. Even can use for desktop also .....