Water in keyboard no display

4 days ago my son spilt a small amount of water into his Lenovo G 530 laptop keyboard.

We have opened the back of the computer, dried it under an air conditioner and used a hair blow drier on warm. Each time we boot the laptop it beeps and nothing comes onto the screen. Is there anything else we can do? Thank you

It might be too late now, but for future reference always turn the laptop upside down on a towel or other porous surface. The "small" amount of water settles on the motherboard and corrodes and rusts the wet areas. This can short out the motherboard... In this case, I am sure you motherboard is fried

thanks for your advice. I have passed it onto my son. It turns out that the keyboard is dead but the computer is ok.