In 2004, he was forced to drop out of school because he failed seven required courses. In the same year, Zhang Fei resumed his studies in Nanchong No.11 Middle School. In 2005, he was once again admitted to the basic science of mathematics and physics in Tsinghua University with a score of 703-the first in Nanchong. However, a year later, Zhang Fei was expelled from the school again because he did not complete the credits.
In 2007, Zhang Fei was renamed Zhang Konggu. After studying in Nanchong No.10 Middle School for three months, he was admitted to Tsinghua University Environmental Engineering again with a score of 677 and the second place in Nanchong Science.