first step

In the Home menu or settings, find and click the "Privacy & Security" option. This option is usually located in the settings menu, but the specific location may vary depending on the APP version.

Step 2

After clicking "Privacy & Security" you will be taken to this page. On the Privacy & Security page, find and click the "Mobile Phone Binding" option. This option will display your currently bound mobile phone number information.

Step 3

Enter the mobile phone binding page: After clicking "Mobile phone binding", you will enter the detailed page of the current mobile phone binding.

Choose to change your mobile phone number: On the mobile phone binding page, find and click the "Change mobile phone number" button or option. This will start the process of changing your phone number.

Step 4

According to the prompts on the page, enter your currently bound mobile phone number, and receive and enter the SMS verification code received by the mobile phone. This is to verify your identity and ensure that you have the right to change the bound mobile phone number.

Step 5

After successful verification, enter the new mobile phone number you want to bind according to the prompts on the page. The new mobile phone number will receive a SMS verification code. Enter the verification code to complete the binding of the new mobile phone number.

Step 6

After entering your new phone number and verification code, click the "Done" button or similar option on the page to confirm and save the changes.

The above is the method that the editor compiled for you on how to change your mobile phone number using TT voice. I hope it can help you!