Why does the location of Tik Tok always show Tangshan?

Tik Tok's position has always indicated that Tangshan is not authorized to locate. Tik Tok location is a virtual location, and you can set it freely. Android and Apple systems are different, so Tik Tok's address display is different. Tik Tok location always shows that Tangshan has not authorized Tik Tok software to use the location function of your mobile phone, so location always shows the location of Tangshan. Furthermore, you enter another city from this city, but the location information in the mobile phone system is not updated in time.