Why doesn't my Huawei mobile phone have an extended password?

Maybe you didn't apply for a long code,

1, click to apply for personal code.

2. Enter the mobile phone number and SMS verification code to log in.

3. Read the application instructions and click "I know".

4. Fill in the relevant information such as residence and contact number according to the prompts.

5. After completing the application, click the application long password to complete the application.