I'm currently holding a J1 visa sponsored by University of California Berkeley ending in March. During several discussions for possible internships starting after the end of my J1 visa, I've been asked if I can enter an internship with my visa, through a renewal or whatever, or I need to get a new sponsorship and start the procedures again.
Based on my experience in almost the exact scenario (different University), you'll have to get a new visa, as I did for my internship(s).
There are a few programs under the J-1 visa. You are most likely in a long-term scholar or a short-term scholar program, and want to switch to an internship program.
I'm currently holding a J1 visa sponsored by University of California Berkeley ending in March. During several discussions for possible internships starting after the end of my J1 visa, I've been asked if I can enter an internship with my visa, through a renewal or whatever, or I need to get a new sponsorship and start the procedures again.
Thanks.