Scholarships are less common for transfer students than frosh, although the UC campuses do offer (highly competitive) Regents scholarships to transfers.
If you are a CA resident with FAFSA EFC = $0, UC net prices are likely to range from $8,000 to $10,000; check their net price calculators. They expect you to take a federal direct loan and work for a few thousand dollars per year to cover this amount. Scholarships, if any, are typically applied to this loan and work expectation.