wireless connection won't turn on

I'm sure I know what the problem is. I have just recently replaced my keyboard and I can't get the F2 button with the wireless button to activate the wireless... Is there a way around this so I can turn it on. I'm not sure if that's the problem but every other key works but when I press those two nothing seems to pop up.( Normally an icon pops on the lower corner of my screen). I tried reinstalling the drivers but without being able to turn it on it won't activate it. I don't want to purchase a new keypad, can I remove it and press the appropriate places to get it to work.. or any one have an suggestion.. Thanks for the help..  I am not sure when it quit working as I only use this laptop for a backup.