How does QQ change its password through SMS?

Need to change the password of QQ account, edit it with a secret mobile phone and send it to the designated number (overseas mobile phones are not supported for the time being).

Edit SMS:

GMQQ number # The new password you want to set, such as "GM123456 #123456789".

Send to:

1069 8888 1700 69

1. The new password must consist of 6- 16 characters, cannot be a pure number with less than 9 digits, cannot have spaces, and cannot be the same as the recently used password.

2. The SMS fee is charged by the operator, generally 0. 1 yuan/article.

As shown in the figure, you can modify the QQ password.