<ol>
<li>
Click the avatar in the upper right corner of the official website, and then click [Security Center];
<img src="https://public.hxdsmy.com/static/MTczNjIzMjg2MjAzNzEzMjE3MA==_1736233199053.png" alt="image.png">
</li>
<li>
Click [Change] on the right side of [Phone Number];
<img src="https://public.hxdsmy.com/static/MTczNjIzMjg2MjAzNzEzMjE3MA==_1736233517446.png" alt="image.png">
</li>
<li>
Enter the email verification code;
<img src="https://public.hxdsmy.com/static/MTczNjIzMjg2MjAzNzEzMjE3MA==_1736233550236.png" alt="image.png">
</li>
<li>
Fill in the new mobile phone number, enter the mobile phone verification code, and click OK to change the mobile phone number.
<img src="https://public.hxdsmy.com/static/MTczNjIzMjg2MjAzNzEzMjE3MA==_1736233584143.png" alt="image.png">
</li>
</ol>