This is transfer from Baidu.com : Here
I translate into English Version:
1. open Mnet website and login. Then you will see the following picture. click the Green button with red circle.

2. after the page has jumped into the next page, go to the bottom of the page, you will see the following picture on the bottom left hand side, click the red box part.

3. you will find the following picture on the left side, click the red box part

4. this is the page for change password.
- first box: old password
- second box: new password
- third box: re-type new password
then click the red button with blue box
p.s. remember new password with 8 digits (letter + number + letter), password can't same as the ID, also don't end with numbers

If your passwords ends with number/ same as ID/ in consecutive way, please go to change asap!!!
hope can help all of you!!!
Update!!
Here is the MAMA vote promotion video -->Video

















