The mobile phone has been restored to the factory settings and Tik Tok has been installed. How to collect verification code when logging in?

The mobile phone has been restored to factory settings. Tik Tok has been installed, and you need a verification code to confirm the security of the account when logging in. According to the relevant information disclosed by the inquiry, the factory settings are restored to the default state when leaving the factory, such as startup interface, standby mode, operation shortcut keys, timing reminder and other functions, and the saved parameter settings are cleared. Some settings of ringtone, theme, scene mode, alarm clock and font are restored to factory status. The contents in the memory card (such as downloaded application) or SIM card (such as SMS) will not be deleted.