What core i5? There have been 10 gerations of the i5.
No matter, you need to contact the manufacturer of your device and ask them which processors are compatible with their BIOS. Then, you can choose from those.
An upgrade processor must be socket, chipset, AND BIOS COMPATIBLE.
However, I will save you the time and tell you NO, it is not possible, as your existing processor is soldered to the motherboard.