The UG Advisor cannot drop or add a class after the deadline has passed. Students are allowed 2 late changes to their class schedule (i.e. adding/dropping courses after the deadline) during their entire time at UCB. If the student has not yet used their 2 late changes, they can petition to late add/drop their class through a Cal Central eform.
For more information and instructions on late dropping, please visit the Late Change of Class Schedule page on the L&S Advising site.