1, open Tik Tok, and click the "I" option in the lower right corner.
2. Click the "three" option in the upper right corner.
3. Click the "Settings" option.
5. Click the "Account and Security" option.
6. Click the "Apply for official certification" option.
7. Click "Apply Now" to authenticate. Tik Tok Jr. was developed by ByteDance Company, aiming to provide users with colorful and innovative short videos. Users can shoot, edit and publish their own short video works and share their life with users all over the world through this application.