<p>Sub 3.0 is not a good indication for the upper division, but it probably means you are approaching it wrong and/or have some weakness that is coming to bite you often, which has to be addressed.</p>
<p>I firmly believe you can make it if you actively try to address the problem though :D</p>
<p>And Berkeley is harder than many “elsewheres” by a huge amount. Don’t feel bad, and just do some self-reflection and you will make it :D</p>