The method of unfreezing: 1. Through the school's Academic Affairs Office, the school's Academic Affairs System account is locked. The school Registrar's Office will ask for relevant supporting documents to help unlock the account.

2, through the operator, is the use of cell phone number registered school teaching system account, can be unlocked through the operator. Different operators have different ways to unlock, you can consult the relevant personnel or query the relevant documents.

Yanshan University, Yanshan University for short, is located in Qinhuangdao City, Hebei Province, is the People's Government of Hebei Province, the Ministry of Education, the Ministry of Industry and Information Technology, the State Administration of Science, Technology and Industry for National Defense quadrilateral **** built national key universities, Hebei Province, the focus of support for the country's first-class universities and the world's first-class disciplines construction of colleges and universities, a member of the Beijing Hi-Tech University Alliance.