Headphone jack, Sleep Lock, Vibrate ring buttons don't work

So i dropped my phone a few months ago and that night the phone and all the buttons worked perfect until the next day, the vibrate switch, the sleep lock button, and the headphone jack does not work. It will only play audio out of the external speaker and wont play through plugged in head phones. Is there any advice on how to solve this issue D:

forgot to mention my iphone is jail broken, so my warranty is gone

I dont want to pay apple Ridiculous amounts of oney to fix it -.-