University teachers have a fast pace of lectures, and they won't leave too much time to borrow your notes like teachers in junior and senior high schools, so you can take photos with your mobile phone and make up your notes in your spare time.
Secondly, the university campus is very large, and the classroom is mobile, so it is more convenient to find the classroom by mobile phone.
Finally, the management of mobile phones in universities is not very strict. In class, you can use your mobile phone to find knowledge points related to professional courses, and you can listen to songs, brush dramas and read novels to relax between classes.
However, our school stipulates that you can't take out your mobile phone to do things unrelated to your study in class, otherwise you will be invited to the dean's office for tea, and you will be disqualified from judging first.
To sum up, universities can bring mobile phones.