to be honest, you have a couple of things against you:
transfer priorities to a UC: cc>uc>csu. Community college transfers have the highest priority, next is UC to UC and last CSU to UC. Your chances would have been better if you had transferred to a community college and then applied to the UC;
Computer Science is one of the most competitive majors to transfer to a UC, even for students closer to a 4.0 GPA.
I know of a person in almost your exact situation who is now a senior at SJSU. The person’s major is computer science with a GPA of 3.8. The person applied to UCD and another UC (Berkeley?) but did not get into either one.
I’m in a similar situation as well, I am trying to transfer as a Public Health major to Berkeley from another UC. Do I have a chance if I have a 3.9-4.0 gpa, pretty good reason to transfer, and solid ECs? I am also trying to transfer in one year because I have enough credits to do so.
I believe you have a very good chance, especially with the high GPA from another UC. I know of someone who transferred to UCB a year ago in the biological sciences. The person had around a 4.0 in the freshman year at UCSC, but decided to attend a community college in the sophomore year just to be sure. The person had a 4.0 at the community college and now is a senior at UC Berkeley.
that will give you a sense of the transfer gpa for all admitted students by campus and major. As a CSU candidate, you need to be in the upper half of the GPA range to be competitive.
So, the certainty are some. I think you’ll find them all to be a reach.