How can I log in if my qq password is changed?

You can log in in another way, you don't need the verification code of the old mobile phone, or even remember the password, but you need your personal information and use your new mobile phone number. The steps are as follows:

1. First, we open the mobile QQ, click "More Options" in the lower right corner, and then click "Retrieve Password" (as shown below):

2. In the new interface, we fill in the complete QQ number and click "Next" (as shown below):

3. There are two verification methods. The first authentication method requires your old mobile phone, which is not applicable. We choose the following information to assist the verification, and we don't need your old mobile phone number (as shown below):

4. The first step of verification is to fill in the new number, then fill in the verification code, and click "Next" (as shown below):

5. Step 2, fill in personal information, such as name, ID number, etc. , and then click Next (as shown below):

6. Finally, check whether you remember the password. If you remember, please tick Remember, and then enter the password. If you don't remember, check and remember. Click Submit to complete the login verification (as shown in the figure below):