Harbin Institute of Technology cannot transfer from Shenzhen to Weihai by changing majors, but you can also transfer to the campus by changing your student status, but the operation is very difficult. So far, I haven't heard of any student who will transfer to another campus alone for personal reasons after entering one campus.
Therefore, Harbin Institute of Technology cannot transfer to Weihai, not now, and it is estimated that it will be hanged in the future. After all, the two campuses of Harbin Institute of Technology are likely to be Weihai University of Technology and Shenzhen University of Technology in the future.
By then, both schools may not belong to Harbin Institute of Technology, and the possibility of mutual transfer between the two schools will be zero.
Refer to the above contents: Harbin Institute of Technology (Shenzhen)-school profile