This must be easier way to get certificate in 24 hours , (no need to login + its in English) - this service was down but its open again
Enter your IMEI in the box indicated.
Enter the verification code next to it.
Click on the submit button.
Return to this page after 24hrs and re enter your IMEI and current verification code,
you will be directed to a new page with 2 links. Click on the first to download your new certificate.
google translate: http://translate.google.com/translate?u=http%3A%2F%2Fcer.s603rd.cn%2F&sl=zh-CN&tl=en&hl=en&ie=UTF-8
or english version: http://andy.ehandysoft.com/devcert.php
OR GET IT FROM OPDA