How do i get a class A misdemeanor retried after a plea has been accepted?

You must file a written motion within 30 days of the entry of judgement alleging all facts or circumstances which rendered your plea of guilty not knowing or not voluntary.    Try Illinois Supreme Court Rules 605 and 606.  http://www.state.il.us/court/SupremeCourt/Rules/Art_VI/ArtVI.htm#605