My iPod refuses to connect to wifi after bad jail break., My iPod refuses to connect to wifi after bad jail break.

My brother tried to jail break my 4th gen 32gig iPod touch and, stated in the question, it was a bad jailbreak and now my iPod will not connect to my schools wifi. Yes, I have tried restarting my iPod, reseting the settings, forgetting the network, turning wifi on/off, and all of the other 'quick fixes' out there. Needless to say, they didn't work. I'm not in favor of reformatting my iPod, but it is a possability. Thank you.