Can i upgrade for i3 processor to i7 mobile

[acero]

Hello,
I was wondering if I can easily upgrade my intel i3 mobile, or is it preferred from i5, to i7 without having to change anything besides the processor?

Thank you.

 

[saaiello]

Most likely not possible some mobile I7s have the same socket but its unlikely to work.

 

[acero]

Thank you for your reply. For example, the i3-330 and the i5- 430 and 450 use µPGA-989 (socket) and if you look at the i7-720 is also has it. In this case would that be okay?